KVM Switch , control 4 computer from a single PS/2 console USB port with USB2.0 Hub, MIC and audioSupport Windows ,NT, UNIX, LINUX, NOVELL, DOS ect operating systemResolution: 1920×1440/60HZBandwidth: 200MHZsupport plug and playSwitch mode: manual, hotkeyMetal shell designIn PE bag or in Blister package OEM order is welcome.any questions, contact us. 4ports usb cable kvm switch