Back in November, Microsoft Edge was revealed to be the exclusive browser with 4K support for Netflix content, and there were few other caveats such as the requirement of a Intel Kaby Lake processor, and a supported monitor. Now, support for such content has been expanded, albeit in preview, to include NVIDIA's latest GeForce GTX 10 series graphics cards.
According to a post by NVIDIA, PC users with a GeForce GTX 1050 or higher graphics card, and an HDCP 2.2 compatible monitor, can enjoy 4K Netflix content on Microsoft Edge or the official Netflix Windows 10 app. Apart from these, one basic requirement includes a 25 Mbit internet connection for a smooth experience.
In case of a dual-monitor setup, if one of the monitors is not HDCP 2.2 compliant, then the quality will be downgraded to Full HD. It must be noted that SLI/LDA configurations are not yet supported, but users can enjoy 4K if the graphics cards are not not linked together in SLI/LDA mode. Although, the version of Windows 10 hasn't been mentioned in the post, AnandTech has speculated that the Creators Update may be required for 4K streaming with the NVIDIA graphics cards and HDCP 2.2 monitors.
If you happen to have the supported PC configuration and a Netflix subscription, do let us know if you are able to view 4K content on your rig.