CME M-Key (color: grey) - USB keyboard with 49 ultra thin keys, velocity sensitive, programmable joystick, 1x function button, 2x data entry buttons, 1x assignable slider, 1x power LED, 1x USB port, 1x MIDI out, 2 x pedal connections, USB MIDI, USB Bus-Powered or powersupply DC 500mA 9V (not included), class-compliant with Windows XP and Mac OS X. Dimensions: 72.7 x 21 x 5.8cm (LxDxH). Weight: 3.2kg.