Control 2 usb enabled computers with this complete kvm kit including cablesr r power free operation kvm draws power from attached computers and requires no power adaptersr compact small footprint design fits easily into almost any environment saving desk space and reducing clutterr included all in one kvm plus audio cables provide a complete out of the box kvm solutionr r the sv211kusb 2 port usb kvm switch kit with audio and cables lets you control two usb enabled computers using a single ke