NuWin USB Switcher Compliant with USB 2.0 specification. Works with either USB 1.1 or 2.0 peripherals. USB 2-channel switch (2 TYPE-B connectors, 1 USB TYPE-A connector) Switch between computers by using the "Relay Port" Provides Bus-power of 500mA per port. Two LED (green) port status indicator. Compatible operating systems: