USB 2.0 KVM 4 Ports Selector VGA Print Switch Box Mini KVM 4-Port switch allows user to control 4 computers with one monitor, USB keyboard, USB mouse, and USB printer High VGA Resolution 1024 x 768, 1920 x 1440, 2048 x 1536 Switch between computers by clicking the button on the switch . Mini and compact, easy to use and storage Auto scan mode for monitoring PCs . Powered by your cable, no external required Support Windows 3.x / 98 / ME / NT / 2000 / XP / Vista, Netware, Unix, Linux