This is an AKAI APC40 MKII Ableton Live performance controller, a controller for Ableton Live. I acquired this used unit in good condition in 2025 and used it once to confirm its functionality. I found it very user-friendly, so I purchased a new one. Therefore, I haven't used this one much myself. I re-tested it for this listing, and there are no operational issues to note. The buttons and indicators light up properly, and all functions, such as pan, sends, launch, arm, solo, faders, AB sliders, play/stop, and device/bank selection, work without problems. I haven't opened the instruction manual. I didn't feel the need to register it, so I don't know if the license is still valid. (I suspect that those interested in this equipment already have some software.) The USB cable is not the original one, but a generic one, which I haven't used either. The front side of the box is dented. There is a small, inconspicuous scratch on the top of the pan knob. Recommended for those who use Ableton Live. Includes the main unit, accessories (USB cable, instruction manual), and the original box. I will pack it with cushioning material in a cardboard box and ship it from the post office. Thank you.