The IOGEAR DVI KVMP switch GCS1104 charts a revolutionary new direction in KVM switch functionality by providing an interface for today's digital monitors while integrating a 4-port USB KVM switch with USB 2. 0 peripheral sharing capabilities. As a KVM switch, The unit allows the user to access Four computers from a single USB keyboard, USB mouse, and monitor, and also share among the computers USB 2. 0 peripherals such as external hard drives, printers and scanners. iogear's DynaSync reads and remembers the monitor's parameters (EDID) so there is no delay or change of video resolution when switching between, or booting computers**iogear's DynaSync provides the edit support for Windows 7**please contact technical support before running firmware updates if your KVM is older than 2 years old