Controls four PCs using a single keyboard and mouse across four monitors Switch via the unit's push buttons, keyboard hot keys and mouse roaming function Independent audio switching and 2-port USB 2.0 hub for sharing additional USB peripherals Plug and Play installation Connections: 2 x USB Type-A female (keyboard and mouse), 2 x USB Type-A female (peripherals), 1 x 3.5 mm audio - 4 x USB Type-B female, 4 x 3.5 mm audio Includes: AC adapter (UK, EU, US, AUS)