Ever since Microsoft introduced the Surface Pro 3 back in 2014, its Surface Pen has used N-Trig technology. Prior that, it used Wacom. But since then, there has been a wide range of devices that support N-Trig technology, from a variety of manufacturers.
Unfortunately, N-Trig pens can be expensive, at least if you buy them from the manufacturer that made your PC. Microsoft sells its Surface Pen for $99.99. Luckily, there's also a wide variety of third-party pens to choose one.
And Amazon has a deal on one right now. The company is selling a Surface pen made by Adrawpen for just $21.24, 21% off of its normal price of $26.99 and much cheaper than buying a Surface Pen, just in case you're on a budget after spending thousands of dollars on that Surface PC.
The Adrawpen pen supports a full 4,096 levels of pressure sensitivity, and it has buttons for right-clicking and erasing. It also comes with two sizes of pen "nibs", so you can choose between hard and soft. The description does not say that the pen supports newer features like tilt.
If you want to check out the Adrawpen on Amazon, you can find it here. The Lightning Deal only lasts for a few more hours, but even at it's full price, it's not a bad deal.