Very impressive given the cost and overall design. I was quite shocked that I didn't have to download/install the driver (Windows 10, MacOS 10.13 High Sierra and 10.14 Mojave), it literally worked after a while. I think it's because the OS loaded the necessary software, but even then it was smooth and perfect. I don't play it, and while the OS animation is a little less smooth than native, it's pretty minimal. It works, it shows up as a second monitor/screen, it's not annoyingly finicky and it won't turn off. If you need a different display for your regular office or for watching movies, you can't go wrong with this one. The only complaint I have is the blindingly bright LED (seriously, folks, there are a lot of bright LEDs).
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