61-key MIDI keyboard, USB connection, with assignable sliders. I'm selling it because I've switched to a different model. Operation confirmed. There are no operational problems, but there are minor scratches, so please refrain from purchasing if you are concerned. No box, only what is shown in the pictures. Will be carefully packed with air cushion and wrapping cardboard. - Model Name: Keystation 61 MK3 - Connection Type: USB/MIDI - Accessories: USB cable - Features: Assignable sliders and knobs - Power: DC 9V / USB - Number of Keys: 61 keys Please understand that this is a used item before purchasing. Thank you for viewing. M-audio Keystation 61 MK3 MIDI keyboard 61 keys USB MIDI MIDI controller DTM DAW Music production Home recording Electronic piano Composition