Share keyboard mouse speakers and a dvi display between four multimedia computersr r perfect for demanding high resolution applications 1920x1440 6070 hzr versatile compliance with usb 20 and older versionsr built in 4 port usb 20 device hub for sharing high speed usb devicesr r this 4 port dvi usb kvm switch lets you control four usb enabled dvi capable computers from a single usb keyboard and mouse peripheral set r ideal for multimedia applications the switch supports audio and mic