Adding the power adapter for the hub lets it to generally be powered to ensure that it may operate several power-hungry devices with only one upstream port. The power adapter can provide 2.5 added amps. Do I or do I not have to worry about it? No guessing below, https://qvs-usb-3-1-gen-1-type-a75341.tkzblog.com/28337372/detailed-notes-on-iogear-2-port-full-hd-kvm-switch-with-hdmi-and-usb