I changed it with a fresh RSHTech seven-port USB hub, and also the black-display reboots go on. I am stumped at this time, in fact beginning to suspect my UPS of spikes or momentary cutouts. Anyway I feel the Sabrent is https://victorikgx075755.aboutyoublog.com/29341938/not-known-factual-statements-about-qvs-usb-3-1-gen-1-type-a-male-to-usb-3-1-gen-1-type-c-female-adapter