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So, someone actually uses that functionality. I bet they're dying to bring it back, then!

Actually tons of people do, which you would have known by reading a few other posts on this subject.

Sadly, however, the debacle of vista has done nothing to temper the arrogance coming out of Redmond....

Perhaps that will finally change once Google gets into the OS game.....

Do you ever do any disc burning of data or ever used a USB stick?

Those who do disc burning or copying to USB sticks. Almost 99% computers have a form of disc burning equipment. There is no CD/DVD or Blu-ray discs to match the sizes of current hard drive. So MS think all we need to do is just drag those files into the disc window when it might NOT FIT. What do you think a novice user going to do when this don't work? "drive broken", "maybe wrong CD or DVD". Many things can confuse users.

So disabling the EASY ability to see the sizes of the files you are draging is actually making Windows harder and more frustrating to use. Maybe I should switch to ubuntu which, like every OS should, have this feature.

Well, if you select a bunch of files it tells you the size in the details pane after you select them. If you're going to move just a specific set of files, you're going to select them anyway.

If you're going to move a folder, then you're going to want to know the size of everything in it, so you'll probably go to the parent folder and hover over it or use the Properties dialog.

If you drag too much data to a disc drive, Explorer will tell you that it won't fit before it even begins copying. I don't think users get confused by this, the message is pretty straightforward...

post-30311-1247603357.png

I'm not saying size is never useful or that we won't look into ways to display it more readily if we can do so without any performance impact... I just think for the 99% case, having a more responsive explorer is better, and that displaying the aggregate size of a shallow enumeration of the folder will confuse most people.

Well, I also miss the space calculation in the status bar; I often find myself right clicking on folders when I didn't have to in XP. What's really annoying is that MS doesn't even give us a registry entry to turn back on features that were useful in their previous operating systems.

And it would be so easy for MS to add size information for each folder in explorer; third-party software does it without a hitch. Size information could be added to the metabase as files are added to the folder; there would be essentially no performance hit.

And if "virtual folders" are needed to address performance concerns about opening large files in explorer, then it's time for Microsoft to implement a new file syst...oh, wait.... WinFS. Maybe this could be one of the "pillars" of Windows 8 :rolleyes: .

Well, I also miss the space calculation in the status bar; I often find myself right clicking on folders when I didn't have to in XP. What's really annoying is that MS doesn't even give us a registry entry to turn back on features that were useful in their previous operating systems.

And it would be so easy for MS to add size information for each folder in explorer; third-party software does it without a hitch. Size information could be added to the metabase as files are added to the folder; there would be essentially no performance hit.

And if "virtual folders" are needed to address performance concerns about opening large files in explorer, then it's time for Microsoft to implement a new file syst...oh, wait.... WinFS. Maybe this could be one of the "pillars" of Windows 8 :rolleyes: .

WinFS wasn't a file system. Virtualized views are not "virtual folders." A virtualized view is any list view that only loads the visible set of data, and loads additional data on-demand (i.e. when the user scrolls down). It has nothing to do with large files... it's for dealing with large numbers of files in a single list, especially when those files may live on a different machine, on the web, etc.

Please tell me what third-party software displays folder sizes without enumerating the contents of the folder.

Well, if you select a bunch of files it tells you the size in the details pane after you select them. If you're going to move just a specific set of files, you're going to select them anyway.

Only when you select less than 16 items.. Then you add a file to the selection, click More Info. Select some more, click More Info.. etc..

If you drag too much data to a disc drive, Explorer will tell you that it won't fit before it even begins copying. I don't think users get confused by this, the message is pretty straightforward...

Oh that's nice, I didn't realise that. :) Haven't done much copying with 7. I never use Vista, and I hate how XP only complains *after* trying to copy the rest of the files. That really is a welcome change.

I'm not saying size is never useful or that we won't look into ways to display it more readily if we can do so without any performance impact... I just think for the 99% case, having a more responsive explorer is better, and that displaying the aggregate size of a shallow enumeration of the folder will confuse most people.

Okay, I can agree with this point. As said, if the improvements are worth more than losing the handy option, then I'll suck it up.

Still nice to have the option though, for some of us that are resistant to change :) (Like how Google allows people to put the "Beta" tag back to Gmail. Sorry, I just had to mention Google. Hope there aren't any chairs around)

Some of us (mostly on PC, not netbooks) have machines that won't take any performance hit whatsoever when enumerating (okay, maybe 1-2 second on folders with excessive contents). It'd be nice if we could turn it back on.

Please tell me what third-party software displays folder sizes without enumerating the contents of the folder.

None, I'm guessing.

All of them.(afaik)

I do not know of an explorer replacement that does not.

A43 does not.

xplorer^2 lite does if you turn on an option, BUT it grinds your disc as if you hit ALT+ENTER on a folder.

As previously mentioned: showing the actual size of a folder does come with a cost, usually unnecessary in most cases.

For the record, the lack of showing file sizes is more than made up for by the amount of information shown per file and metadata editing capabilities in Vista's and 7's Details pane.

Virtaulized views make the Explorer scale far better than before, so you can open a directory containing tens of thousands or hundreds of thousands of items (or do a search that returns that many results) and it will be just as responsive as if you opened a folder with 10 files. If we actually had to load file data for that many items it would make browsing less responsive and cause a bunch of unnecessary I/O.

That explains why XP's Explorer chokes on a folder with thousands of archive files on my PC, but not on Vista/7.

All of them.(afaik)

I do not know of an explorer replacement that does not.

I just installed Xplorer^2 and it certainly doesn't.

I turned on the "Show total folder size" option (which requires you to restart the app!) and it still only shows the size of the files in the immediate folder, not the size of folders. I even went back and checked "Calculate subfolders size automatically" but this appears to have had no effect (it still says "5 item(s) 0B" for a directory with just sub-folders in it and "folder: 0b" when I select a folder).

That latter option has a fun help tooltip:

post-30311-1247616413.png

It doesn't seem to affect the column in details view either... for folders, the size column just says "<folder>" and nothing else.

If I press Ctrl+D it eventually displays the folder size, but it takes a while (on my overpowered dev machine) and doesn't even provide any feedback that it's working.

A43 does not.

xplorer^2 lite does if you turn on an option, BUT it grinds your disc as if you hit ALT+ENTER on a folder.

As previously mentioned: showing the actual size of a folder does come with a cost, usually unnecessary in most cases.

For the record, the lack of showing file sizes is more than made up for by the amount of information shown per file and metadata editing capabilities in Vista's and 7's Details pane.

That explains why XP's Explorer chokes on a folder with thousands of archive files on my PC, but not on Vista/7.

Never heard of the first one, so I'll take your word for it.

As to xplorer2, your comment is ludicrous...as I run xplorer2 x64, and it is instantaneous and issue free, just like windows explorer was in XP.

And no, nothing makes up for the loss of it in any way whatsoever.

Never heard of the first one, so I'll take your word for it.

As to xplorer2, your comment is ludicrous...as I run xplorer2 x64, and it is instantaneous and issue free, just like windows explorer was in XP.

And no, nothing makes up for the loss of it in any way whatsoever.

Dude that's the app I'm trying right now... it does no such thing.

I wanted to see how this program would handle enumerating all the files in a directory structure (like typing "*" into Explorer), but I don't even see how I'd do that... It doesn't even have a search box?

I just installed Xplorer^2 and it certainly doesn't.

I turned on the "Show total folder size" option (which requires you to restart the app!) and it still only shows the size of the files in the immediate folder, not the size of folders.

Holy crap, are you for real...???

This is what we've been talking about for months now!!!

Freakin' unbelievable... :no:

The total size of the files in the immediate folder is what we are talking about.(although I see now why m$ can't seem to find it's arse with both hands...((but I digress)) )

Never heard of the first one, so I'll take your word for it.

As to xplorer2, your comment is ludicrous...as I run xplorer2 x64, and it is instantaneous and issue free, just like windows explorer was in XP.

And no, nothing makes up for the loss of it in any way whatsoever.

A43's what I use if my Windows install is hosed, off the Ultimate Boot CD for Windows.

Windows Explorer under XP shows you the size of the folder, but just the files only. There was a hack you could download that causes Explorer to enumerate the folders automatically in Details pane... can't remember what it's called.

Yeah, of course it would be instantaneous if it were small folders. What about large folders? What if you tried it on, say, your Program Files folder or your Windows folder?

edit: What we can conclude from this discussion is:

1) The old status bar isn't meant to be used anymore. Nevermind that it looks like an abortion of a UI element if turned on in Explorer.

2) UI designers decided that a good chunk of users don't bother with looking at the combined size of files for just that folder only... but because:

3) if they wanted to quickly parse the entire folder to determine the size of the folder, they would do as what they did in XP: have Explorer read every file before displaying the folder to the user. Good if the folder's not that large, but as I've seen happen many times in XP, it chokes if you're getting into thousands and thousands of files in a single folder.

You could have it both ways: make Explorer read everything if the number of files is less than an arbitrarily selected number - then in this case you could show the number of files in the status bar. Above it, ignore this step. Overall though, this is quite a minor point to be honest in the grand scale of changes done to Explorer since XP.

Edited by rm20010
Holy crap, are you for real...???

This is what we've been talking about for months now!!!

Freakin' unbelievable... :no:

The total size of the files in the immediate folder is what we are talking about.(although I see now why m$ can't seem to find it's arse with both hands...((but I digress)) )

Are you even reading the thread?

Please tell me what third-party software displays folder sizes without enumerating the contents of the folder.

All of them.(afaik)

I do not know of an explorer replacement that does not.

I asked about folder size, not the added up sizes of files in a shallow enumeration of the folder (who the heck ever wants that??? Just select the files and you'll see it in the details pane).

Only when you select less than 16 items.. Then you add a file to the selection, click More Info. Select some more, click More Info.. etc..

Agree, this might be an area to improve (adding files after you've said Show More Info should probably just do the calculation).

I asked about folder size, not the added up sizes of files in a shallow enumeration of the folder (who the heck ever wants that??? Just select the files and you'll see it in the details pane).

Some people do for various reasons, judging from the responses to this thread and the OP. What I'm not sure of is if by offering an option to do a shallow enumeration of the folder, would it clash with the performance benefit offered by virtualized views (as you put it) of folders in Explorer?

*sigh*

post-30311-1247617743_thumb.png

Are you...??

As I am the topic starter, and this has been my beef all along, and most other people, save the fanboi's, seem to understand it.

I'll certainly make sure the right PMs are aware of your request. But as I said, I don't see how it'd be possible to do that without confusing people and without de-virtualizing the entire selection, causing performance problems. How are you supposed to know what that number is telling you? Most people are going to assume it's either the size of the selection of the size of the folder they're viewing, not some rather arbitrary subset of the folder they're viewing.

It appears this isn't the default behavior in xplorer^2, probably for the same reasons.

I guess there is a performance penalty...

General rule of software development: for large software projects, small changes like these aren't done just for the hell of it. This sounds like the days of Vista's beta period where even small things such as lightening up the blackness of maximized windows required dozens of people to look over and moving up a hierarchical tree of staff to get this change approved and checked.

I wanted to see how this program would handle enumerating all the files in a directory structure (like typing "*" into Explorer), but I don't even see how I'd do that... It doesn't even have a search box?

FYI I tried browsing to some 10,000+ items shares and this app is clearly struggling with it (heck the whole UI even hangs and frosts over! On a 64-bit quad proc, 4GB machine...).

Edit:

Tried a share with a couple million items and the app hung for 2+ minutes and then aborted the navigation, staying in the previous folder.

Explorer navigates there in a fraction of a second.

So clearly this app is designed for small folders...

FYI I tried browsing to some 10,000+ items shares and this app is clearly struggling with it (heck the whole UI even hangs and frosts over! On a 64-bit quad proc, 4GB machine...).

Edit:

Tried a share with a couple million items and the app hung for 2+ minutes and then aborted the navigation, staying in the previous folder.

Explorer navigates there in a fraction of a second.

So clearly this app is designed for small folders...

I tried it on a folder with over 1000 items, no probs.

As for "couple million"....I'll take a (huge) leap of faith, and take your word for it...although it changes nothing.

Oh, and fyi...the guy who wrote that app, does this part time, as a second job if you will...and not with the resources of Redmond, so knocking the guy's app makes you look quite churlish.

He charges $30 for it... so he's open to criticism as far as I'm concerned :)

My only point was that everything Explorer does has to be on a much larger scale. Explorer works with tens of thousands to millions of items (a normal user's Pictures and Music libraries will be huge, and Explorer supports views that display the entire contents of those libraries, where the contents are not broken down by folder). It gets used by a billion people all with different tasks and priorities (and backgrounds and experience). So it's not really feasible to have an option for every fairly obscure usage scenario that a handful of individuals might want. That's not to say we can't make it better, more customizeable, or anything like that... I'm just saying that the implication that it is because we are lazy or incompetent isn't exactly fair. You seem to keep saying things like "all these Explorer replacements can do that" without considering that those apps have very different requirements, scaleability and reponsiveness concerns, localization + testing + security concerns, and so on. It's really apples-to-oranges.

He charges $30 for it... so he's open to criticism as far as I'm concerned :)

I'm a developer and I agree with this statement.

Rickkins, Brandon was just backing up his point that with very large folders, there will be performance issues.

Are you saying that just because you don't seem to have very large folders, Microsoft should provide this option, even though it would make Windows Explorer perform very badly for others?

Microsoft know what they are doing and they often do research on these types of things. It's evident that this option is only wanted by a handful of people and I'd rather take a couple of extra clicks over a performance nightmare any day.

  • 2 months later...
I'm a developer and I agree with this statement.

Rickkins, Brandon was just backing up his point that with very large folders, there will be performance issues.

Are you saying that just because you don't seem to have very large folders, Microsoft should provide this option, even though it would make Windows Explorer perform very badly for others?

Microsoft know what they are doing and they often do research on these types of things. It's evident that this option is only wanted by a handful of people and I'd rather take a couple of extra clicks over a performance nightmare any day.

But windows explorer still has the option 'view', 'details' where you can see the size of each individual file in the current folder.

I can't imagine how adding those already existing numbers together and display it in the status bar would cause any performance issues.

I also can't imagine how much work it would be to just add an option that does it.

What I miss the most in windows 7 compared to xp, is the 'remaining disk space' information in the status bar. Adding that can't possibly cause any performance issues. You might say 'just have another window open that shows your disk drives', but why should I have to use a 2nd window for such a trivial thing. When working with countless folders on many drives, it saves a lot of time if the information was just down there on the status bar at all times.

The number of items information seems absolutely useless however. I can't think of any reason why 'most people' would need to know how many objects or files are in their current folders fast and often (alternative is always select and alt-enter) more than their total size or remaining disk space.

But windows explorer still has the option 'view', 'details' where you can see the size of each individual file in the current folder.

I can't imagine how adding those already existing numbers together and display it in the status bar would cause any performance issues.

You are right, adding the numbers up wouldn't be too much of a performance hit. The hit would come from getting the numbers off the file in the first place.

Irrespective of the number of files in the folder, Windows Explorer deals with only the files in view. It has the sizes of only the files currently in view. As other files come into view, it gets their info "on-the-fly". This is how it limits memory usage and maintains responsiveness for folders with a large number of files. But if it were to show a total size, then it would need to read the info off all files in one go. That would cause serious disc activity when navigating to a folder with large number of files.

The performance reason is bull**** as it was there since Windows 95 and there was no noticeable/perceived performance hit nor thrashing disk activity due to it calculating total size. And what's the excuse for not displaying free space in every location? (Even Vista did that) Does it eat away the CPU completely? I don't expect anything to change with MS employees denying that there's a problem in the first place. As an example, it is so difficult now as pointed out earlier to view how much space on your HDD, deleted files in the Recycle Bin are taking. The total size is not shown on the status bar or details pane. Plus it is not possible to view the collective Properties of multiple selected items in the Recycle Bin. Do you now select each folder item and add up their sizes? Do they want us to use the Windows 7 Calculator? Is that why they've done this? Please give us the "shallow" computation without the subfolders minus the "Show more details" nonsense for 15+ selected files as they was useful to us. The only place where this feels sluggish in XP is when doing searches, that is in virtaulized views. Well then turn it off for libraries and searches.

The functionality of the status bar has been removed, it has NOT been moved elsewhere. If Windows 95-XP did it, we want Windows 7 to do it as well. What happened to the user in control principle MS? Are users reporting any performance hit? This just seems to be excuse to keep the performance of the sluggish-while-browsing-across-folders Explorer reasonable. The question is not whether there is a performance hit. The question is users are ready to take the supposed fictitious performance hit, they just want a feature that was there from Windows 95-XP and didn't cause them any headaches but is now a major issue in Windows Vista/Windows 7. But there's no hope.

An Explorer clone in-progress called Explorer++ does this with no blocking hit in performance.

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In the box F4-425 Pro TNAS device Power adapter LAN cable (CAT 6) Quick guide [full online guide] Limited warranty notice Screws (for HDD bays) Stickers 2x rubber feet (spares) Design As has become kind of common with TerraMaster, certainly in the last three years, the 2025 F2- and F4-series have received a makeover that really adds to the premium feel of the NAS. Gone are the plastic shells, now replaced with an aluminum outer shell, with the front and back retaining the textured black plastic we saw on the 2024 models. Some key differences from the 2024 series include placing the power button back on the front, along with the addition of a Type A USB port. It's not much bigger or heavier either; in fact, it weighs 500 grams less than the F4-424 Pro. It's slightly shorter in height and depth (length), but only by a few millimeters. The front and back do retain a similar style to the 2024 series. On the front, you just have your four bays along with LED indicators for the HDDs and power. The welcomed change is having a USB port on the front for quick access, should you need to back up a USB drive, for example. Around the back, from top to bottom, you have a reset pin hole, an HDMI port, two 5 GbE Ethernet ports, two USB 3.2 Gen 2 (10 Gbps) Type A ports with a Type-C port below them, and a connector for the barrel port power source. Again, there's no Kensington Security Slot present, which is a bit of a shame considering it's a data storage device. Left side Right side On the left and right of the F4-425 Plus, it is completely smooth aluminum with a TERRAMASTER logo printed on both sides. On the bottom, there are some holes to assist ventilation. Unlike with the F4-425 Plus, the rubber feet did come unstuck during the teardown, which was also an issue on the 2023 series. It seems like other customers have lodged complaints about them, as TerraMaster now includes two spare rubber feet in the box, in case any of the preinstalled ones are lost; however, this seems more like a papering over the cracks solution rather than actually fixing the issue with better quality rubber stand-offs. There are also four screws that must be removed in order to access the internals. Teardown Upon removing the four screws, you can slide the device out of its shell to reveal the three NVMe M.2 slots (PCIe 3.0 X1) and single SODIMM slot connector, which is populated with a single 16GB DDR5 4800MT/s module. I added a couple of MP44Q M.2 PCIe 4.0 SSDs (2 x 4TB) that can be availed on Amazon for $492.99 that TEAMGROUP supplied us with, along with a 250GB 970 Evo Plus that my colleague Chris White sent me by accident and let me keep a few years ago. As I have said in previous reviews, TerraMaster support staff actually encourage installing whatever you want on their devices, and happily, the USB port for the bootloader is now easily accessible should you want to use it for your own flavor of NAS OS, such as TrueNAS, Unraid, or maybe Xpenology. Yes, because TerraMaster has now switched to a 256 GB NAND Flash card (3rd photo above) for the TOS bootloader. This is also replaceable, but you can also simply add a USB bootloader, access the BIOS, and tell the F4-425 Pro to boot from that instead of the Flash card. Unlike earlier iterations of TerraMaster NAS, you don't have to tear this down any further than the four screws on the outer shell in order to be able to access and manage the memory, NVMe slots, and USB bootloader. However, if you need to access the NAND Flash card or CMOS battery, then eight more screws (four on each side) need to be removed in order to take off the rear panel with the 120mm fan, and then the motherboard can be lifted off and removed from the SATA connector PCB. There's also no risk of threading the screw holes, because the four that hold the shell in place are metal on metal, while the screws that hold the rear panel on do screw into plastic. Either way, like last time when I reviewed the F4-425 plus, I was just happier to see larger screws being used. Overall, it follows some great improvements in build quality from the 2024 series and earlier. Setup BIOS The F4-425 Pro includes an Aptio BIOS from American Megatrends [1, 2], and you can setup pretty much everything here including the boot order, which is locked to the UEFI OS, however above that choice you can enable or disable booting to the USB bootloader so this would still allow you to switch to a USB stick with an alternative bootloader and boot from it, or disable it to instead always start from the first disk with an OS installed on it. Initial Setup Setup is roughly the same as the F4-425 Plus, along with the new TOS 7 setup dialogs, so there will be no surprises here. Upon connecting to the LAN and booting up, the F4-425 Pro can be reached by navigating to http://tnas.local. If that doesn't work, you can use the local address assigned via DHCP, which you can find using the TNAS PC desktop application, which is essentially a TerraMaster NAS finder. The setup process is pretty straightforward, through a wizard, and in full below: TOS 7 Initialization As you can see, TOS 7 received a new coat of paint, and the initialization requires fewer interactions. Happily, TOS no longer decides to throw all disks into the same Storage Pool; 2.5-inch HDDs are allocated into Storage Pool 1. This is because two of the HDDs are allocated to hold system files. Previously (with TOS 5 and 6), if you pre-installed HDDs and SSDs, they were all placed into Storage Pool 1, even if you did not select the SSDs for inclusion during the onboarding. TOS 7 Setup On first boot, there is a tutorial and some steps to take to harden the TNAS (or not), which includes an immediate update from TOS 7.0.0616 to 7.0.0706, of which the changelog screenshot is also included in the above gallery. It must be noted that the Security Advisor still contains (in my opinion) a pretty major bug in that if you enable SPC and then do the required rebooting, the Security Advisor still says that SPC is disabled. TerraMaster provided the following statement about it: It is disappointing that TOS 7 has been in beta since December, and this OOBE issue is still there. Shutdown option has moved Instead of a Taskbar option to manage the NAS, all of these options have been moved to a "Start panel", initially I didn't see it and my contact had to show me how to power off the F4-425 Pro. To logout, reboot or power off you can find those controls at the top right of the Panel. It is also possible to power off through the TNAS mobile app beta. Storage setup Above, you can see the steps I took to create the Storage Pools and Volumes. I made a second Storage Pool using TRAID on two 4TB MP44Q SSDs (which, in this instance, is similar to RAID 5), and finally, I added the 250GB 970 Evo Plus drive as Hyper Cache on Storage Pool 1 in Balanced mode. Registering If you decide not to lock down the F4-425 Pro in Security Isolation Mode (blocking all external connections), then you could set up a TNAS device ID through the Remote Access setting in the Control Panel (which must be unique). This works in combination with an online TerraMaster account. TOS 7 TNAS Online Creating a TerraMaster account and linking the device online activates the warranty when you provide proof of purchase and the serial number, but it also gives you access through the TNAS mobile app, which allows you to complete certain operationsб including powering off and restarting the NAS remotely. A TNAS mobile update is required to gain access through TOS 7, and this is provided on the TerraMaster website, as it is not yet on Google Play. The app is evolving all the time and has made leaps and bounds since I first started reviewing TerraMaster devices almost three years ago. It is not quite there yet if you are comparing the likes of Synology, which, sadly, a lot of users online do all the time. OpenClaw setup One of the main selling points of the new F4-425 Pro is the inclusion of OpenClaw, with TerraMaster claiming that it is "powered by the world's first AI-native TOS 7 OS, supporting local-first smart workflows and independent data control." However, I immediately ran into problems trying to enable OpenClaw. After waiting 20 minutes at the "Enabling" message of the OpenClaw app following installation, I decided to do some searching online and discovered that it couldn't complete the installation process due to SPC being enabled, which is something TOS 7 immediately recommends to be enabled on first boot. SPC for NAS (TOS 7) is basically the same principle as UAC in Windows; it blocks executables from being launched by non-Super Users. After reaching out to my contact about these issues, I received the following response: Anyway, this only became clear when I closed the OpenClaw app screen and clicked on the OpenClaw icon in the taskbar; that is when I saw the message about disabling SPC. I think, due to the fact that this is a requirement, this should be a prompt during the installation process, not when closing the App Market and then trying to launch OpenClaw. There's also no 'Getting started' guide for people like me who have never used OpenClaw. I tried to add an LLM and discovered the tutorial led nowhere. That's when I started looking around the official TerraMaster forums, and I found a guide that helpfully explains that you won't get anywhere with OpenClaw unless you have a paid plan, which is disappointing because I imagined there would be an option to use a local LLM as I do in SubtitleEdit with Whisper-XXL. In addition, with the marketing imagery on the official site, it says that the OpenClaw feature is "all processed 100% locally for absolute privacy." which led me to believe that I could install a local LLM, not one that required paid tokens. In any case, TerraMaster does not provide guidance for this new feature, which was also a selling point of the F4-425 Pro! My contact also provided clarification about the above points I raised with TerraMaster Since it is not in the scope of the review to add paid services, I'll leave that to the people who are more qualified with OpenClaw. F4-425 Pro Surveillance App TOS also comes with a Surveillance app, which is not installed by default; it can be found in the App Market recommended section. In addition, after installing, it doesn't drop a shortcut on the Desktop or top taskbar, but you can "Send to Desktop" from the App Market listing for the app for a quick way to open it. Adding my Reolink POE doorbell camera was painless. TerraMaster doesn't appear to have a repository of preconfigured cameras; instead, the camera must be added using ONVIF or RTSP. No mobile Surveillance app TerraMaster still doesn't have a dedicated Surveillance app, although from searching online, Surveillance can be used and managed through the TNAS mobile app. I tried this with the updated TNAS mobile app beta in combination with TOS 7 and got a message that Surveillance was "Only accessible through web browser," so I reckon this must be limited to the stable versions of TOS 6 and the mobile app. More quirks In addition, whenever I minimized the Live View window in the browser Surveillance app, the feed appeared to switch to the Low-bandwidth stream, and there was no way to get the High-quality stream back. To get the High-quality stream back, I had to close Live View and then reopen it. Benchmarking A pretty cool feature of the TOS 7 is that it allows you to install directly to the NVMe M.2 SSD. In order to do that, you would have to leave out any HDDs during initialization, and even then, the system partitions are always written to two HDDs when they are eventually added. With three NVMe slots, this also gives an interesting scenario where you could build a TRAID storage Pool for installing all your apps and Docker on, and keep the third for SSD cache on the HDD pool. Limitless options! SATA PCIe 3.0 X1 A CrystalDiskMark test on a mapped network drive from within a Windows 11 25H2 PC (image above) connected over a 5 GbE hub was well within acceptable ranges. Although the read result on SATA was a little less than with the F4-425 Plus, for some reason, while writes were generally better. SATA PCIe 3.0 X1 I also ran the NAS Performance tester, which tests the link speed performance. As you can see, it pretty much maxes out the 5GbE connection. Of course, you can also opt to bond the two 5 GbE connections for a bit more umph, but I didn't do that. TOS 7, which, as of testing, is still in Beta, comes with an App Center that has a bunch of handy programs you can install right off the bat, such as Emby, Plex, Docker, as well as in-house Backup and Surveillance solutions. As you can imagine, any media streaming services you would want to host off the F4-425 Pro will work great, thanks to the Intel Core N350 CPU and its 16 GB of DDR5 memory. Accessing from mobile is only possible if Security Isolation Mode is disabled, which can put your NAS at risk from external sources, so there was no way to access it from the TNAS Mobile app. It's also quiet. I had this sat next to my computer on my work desk for the past week, and I did wonder if the noise I was accustomed to with NAS devices would annoy me, but all I could hear was a soft whirring of the rear fan (which was a little annoying) when the disks were not actively copying or reading data. Conclusion So what have I learned? Unfortunately, this release raises a few important questions and concerns that I feel haven't been adequately addressed. What I didn't like Our variant shipped with TOS 7 beta, and it's advised not to use it in a production environment. I feel that's a bit limiting on an $800 device. The mobile app is also still in beta and does not support some of the first-party apps, like Surveillance, and it still has quite a few bugs. I am a bit confused about the OpenClaw marketing along with the F4-425 Pro. I feel like that if it's going to be a main selling point, then offer official guidance on how to get started with it. TerraMaster recommends enabling SPC, but then markets the NAS for use with OpenClaw, which requires disabling SPC to be able to use it, opening up genuine security concerns for the NAS; and that's before you get into the security concerns of OpenClaw itself. Of course, the above issues won't be a problem if you decide to install something else on it, or even go back to the stable TOS 6. I wish TerraMaster had just given TOS 7 as opt-in rather than shipping with it. TOS 7 has been available as a preview since December 2025 (so well before my last TerraMaster review), and according to a thread on Reddit where a user shared a screenshot from the TerraMaster Facebook page, it is scheduled to launch today, June 23, but there's nothing about that in the TerraMaster news blog. My contact confirmed over email that TOS 7 exits beta today. The rubber feet also deserve a mention as they continue to be a problem, with them coming unstuck the moment you shift the F4-425 Pro anywhere on your desk. What I liked What it comes down to, though, aside from what I already mentioned, you are still getting a quality, affordable device here, so recommending it will depend on the individual's use case. If you're just looking for a relatively small NAS device to manage virtual machines on, backup your files, and take care of your home theater streaming, then it is a great device that will certainly futureproof you for some time. It provides good performance, takes up little space, and is, on the whole, very quiet. Four bays afford proper redundancy using TRAID or RAID 5, and you can even expand on storage capacity by adding the 2-bay D5, or 4-bay D8 Hybrid DAS over a USB 3.2 (10Gbps) link. Considering the 2024 releases were more about power, with the likes of an Intel Core i5-1235U high-end laptop CPU under the hood, I asked my contact last time if we could expect more of the same in higher-end models and was told: It makes a lot of sense to use Intel's N350 chip inside a NAS; it is more than capable of doing what the F4-425 Pro is intended for, media streaming and backup. The only downside is still the clear lack of community and even staff support on the official forums. In the past, I have had topics go unanswered for days, or there would be generic-type "we've noted this and passed it onto our developer team" type responses. Along with the other things I mentioned, it all ends up costing it a couple of points. If you are comfortable with the command line, Docker, and setting up TrueNAS or Unraid, you'll be fine. You can do great things with this hardware. In TOS, the apps are a bit lacking, and things don't always work as expected.\ AI NAS?! What has become clear to me this year is that we are going to start seeing all kinds of "AI NAS" come to market, and while that might be good for us consumers, be diligent and research these claims. Although the F4-425 Pro technically comes with AI, it is really using a cloud service that is externally sourced off-device through the third party OpenClaw app. My colleague did review a newcomer to the NAS space earlier this year, and it includes a local AI assistant inside the Zettlab D4 NAS, and they do not even use AI in the product name, check out Chris' review here. Where to buy and a discount coupon However, it does not change the fact that this is truly a great entry-level home media-class NAS that you can buy right now. TerraMaster is having a 20% off launch discount, plus you can also still apply our unique 10% off coupon on checkout, which only works on the official website. So here is a breakdown of the pricing that is only valid on the official TerraMaster website. TerraMaster F4-425 Pro (N350) + 20% discount + 10% coupon = $575.99 TerraMaster F4-425 Pro (N305) + 20% discount + 10% coupon = $503.99 TerraMaster F4-425 Pro (N350) + 20% discount + 10% coupon = £525.59 TerraMaster F4-425 Pro (N305) + 20% discount + 10% coupon = £460.79 Use NEOWIN coupon code during checkout for 10% discount Over on Amazon US and UK, the F4-425 Pro also gets a 20% launch discount, but here, the above 10% coupon cannot be applied. TerraMaster F4-425 Pro (N350) for $639.99 at Amazon US (was $799.99) TerraMaster F4-425 Pro (N305) for $559.99 at Amazon US (was $699.99) TerraMaster F4-425 Pro (N350) for £583.99 at Amazon UK (was £729.99) TerraMaster F4-425 Pro (N305) for £511.99 at Amazon UK (was £639.99) As an Amazon Associate, when you purchase through links on our site, we earn from qualifying purchases.
    • well you can add a GPU for around $500, that's still around the price of Steam Machine but overall significantly better in performance.
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