This unit works perfectly but cosmetically is well used. All pads and buttons work. No Power supply with this item. 

The Roland Octapad II PAD-80 MIDI Pad Controller is an electronic drum percussion controller developed by Roland, introduced in 1989. It features eight velocity-sensitive pads, allowing users to trigger sounds from various sources such as drum machines, synthesizers, and samplers. The device also includes eight external trigger inputs, user-definable drum maps, layered notes, and adjustable velocity curves. It enables users to play up to three notes per pad and utilize velocity switching, which allows for stacking or alternating between assigned notes based on the force of the pad strike. This makes it suitable for creating more realistic drum parts and playing melodic instruments.The Octapad II is known for its full MIDI support, making it a versatile tool for triggering MIDI-compatible instruments. It has been used by notable artists such as Nine Inch Nails, The Prodigy, and The Chemical Brothers