About Trendnet 4-Port USB KVM Switch Kit
You will find a port for an exterior power provide but its linked on to the 5V line so if you need to externally power, we advise prying open the case and slicing the crimson 5V line from your USB link. The switch also permits four pcs to easily share a single external harddrive, scanner, or any USB unit. No more plugging and unplugging among desk