M-Audio OXYGEN 61 3rd Gen. I am not sure if works properly or not. I cannot download the driver for my OS. I plugged it into my mac with a usb cable (not included) and powered on. I used garage band to try and test this. Some keys got sound and some didn't. I don't know anything about midi controllers so I am just selling this for parts or repair. Maybe you can make it work, maybe not.