THE 2-MINUTE RULE FOR SABRENT USB 3.0 4-PORT HUB WITH INDIVIDUAL POWER SWITCHES

Basically post a print task along with the printer automatically switches to the popular Pc. The switch also allows four pcs to easily share just one external harddisk, scanner, or any USB gadget. No extra plugging and unplugging amongst computers.More mature versions of USB forbid downstream units from sending power back again on the hub. USB-OTG