This FJ-Gear product came with a piece of paper printed in Chinese. Didn't mind because I expected the USB KVM switch to work out of the box. Connected PC with command line CENTOS 8 and Windows XP. The VGA part worked, but the USB connection caused errors on the Linux machine after toggling. Spent the day swapping connectors and USB cables and searching the internet for Chinese characters. There is no documentation about it. Revain tech support suggested basic things like changing cables and rebooting, all of which I did. Finally returned the product. Too bad because it was exactly what I needed.
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