If you're looking for a keyboard controller that you can use in the studio, on-stage, or anywhere you feel inspired, look no further than the A-300PRO. With 61 velocity-sensitive keys, 45 assignable controls, 8 dynamic pads for finger drumming and MIDI triggering, and a sure-grip pitch bend/ modulation stick, the A-300PRO has the features and feel you need to get the most out of your music performances and productions. Comes bundled with the Cakewalk Production Plus Pack including three incredible instruments and production software. Works with any DAW or Mac or PC. Supports Windows 7 and Mac OS X Snow Leopard. USB Bus Powered so no need for an AC adaptor.