Check the listing for details. M-Audio Keystation 49e USB MIDI Keyboard Controller 49-Key Untested. Condition: Used. Listed at 53.99 USD. M-Audio Keystation 49e USB MIDI Keyboard Controller. Condition: - Pre-owned. - Untested. I do not have the equipment or software needed to fully test this unit. - Sold as shown in the photos. - Cosmetic wear from normal use including scuffs, marks, and discoloration. - Includes only the keyboard. No USB cable, power adapter, software, sustain pedal, or other accessories are included. Features: - 49 full-size velocity-sensitive keys - USB MIDI connectivity - MIDI Out port - Pitch bend and modulation wheels - Volume slider and octave controls Please review all photos carefully for the exact condition before purchasing.