Product InformationIOGEAR's GCS24U 4-Port USB Cable KVM allows users to share a VGA monitor, a USB mouse, and a USB keyboard between four computers. Users can switch between computers using a manual switch located on a wired remote control that can be placed conveniently on your desk. It offers an out-of-box/entirely plug-in-play solution with no additional cables or software installation needed. It is also powered through the USB bus and thus does not require a power supply to run. It is the ideal KVM for those who want a competitively priced, entry level KVM that will allow them to multitask with four computers at their disposal.