I changed it with a whole new RSHTech 7-port USB hub, as well as the black-display screen reboots keep on. I'm stumped at this time, actually starting to suspect my UPS of spikes or momentary cutouts. in any case I do https://larissajkhy287787.vblogetin.com/34071441/getting-my-sabrent-2-port-usb-type-c-kvm-switch-to-work