The CS64UZ 4-Port USB KVM Switch from ATEN allows for one console to control four USB computers. The KVM switch has an all-in-one design with ports for connecting a keyboard and mouse as well as video and audio connections.Featuring Video DynaSync™ technology, ATEN's extended display identification data program, the KVM switch remembers each monitor's parameters eliminating boot-up display problems and optimizing display resolution when switching between ports or computers. The auto scan function allows the user to monitor each computer and the default hotkeys can be used to toggle between the ports and operating systems as well as other switch functions. When needed, the hotkeys can be reprogrammed for the user's convenience. The KVM switch's USB mouse port can be used for USB 1.1 hub and USB 1.1 peripheral sharing.This KVM switch is compatible with Windows, Mac, Linux, and Sun operating systems and supports multi-function and wireless keyboards and mice, and features Sun/Mac keyboard emulation. The CS64U is non-powered and firmware upgradeable.