IOGEAR 4-Port USB DVI KVM Switch, GCS1004 One DVI console controls up to four USB interface computers DVI-D KVM cable set - Includes two 44-pin Custom KVM cables (4ft & 6ft) to connect up to four computers Audio enabled - full bass response provides a rich experience for 2.1 channel surround sound systems Auto Scan Mode for monitoring all computers Multiplatform support - Windows, Linux, Mac, FreeBSD and Oracle Solaris Console mouse port emulation/bypass feature supports most mouse drivers and multifunction mice Computer selection via front panel pushbuttons, hotkeys, and mouse switching function