Switches DVI-D (Digital, Single Link), USB mouse & keyboard, USB 2.0 devices, 3.5 mm audio devices between two computers. Supports monitors with DVI-D single link up to 1920x1200, DDC monitor identification & 1080p full HD* Hotkey function - KVM only, Audio only or KVM & Audio Supports USB mouse and keyboard, including wireless mice and keyboards, and keyboards with extra keys (i.e. Multimedia) Acts as a USB hub for connecting additional USB devices USB 2.0 speeds up to 480Mbit/sec Compatible with Windows 2000/XP/Vista/7/8 and Mac OS 10.3 Cable length 1.5 meters 2 year warranty *HDMI adapter required. Ifyou have video problems with monitors that have both HDMI and DVI input ports you may have to use this adapter and the HDMI input port on your monitor. This combination of input ports can cause picture problems, especially with Samsung 2032MW & S23A700D models.