M-Audio Keystation 61 is a velocity-sensitive, semi-weighted 61-key USB-MIDI controller keyboard.

http://m-audio.jp/keystation61/

USB-Midi cable to supply power and send and receive MIDI signals included
Perfect working order, the only blemish is that the knob on top of the fader is missing (but the fader still works perfectly).

Size (W x H x D): About 981 x 92 x 238mm
Weight: about 4.8kg

¥5,000