Samson Graphite MF8 Control Surface, USB MIDI Controller, Eight channels with faders, parameter knobs, Record and Mute/Solo buttons, Programmable master encoder, five function but tons and crossfader, Dedicated transport controls, Five customizable Preset options, Left and right arrow buttons to control more tracks, Mini USB port, iPad (requires optional camera connection kit) and USB bus powered, Includes mini USB to USB cable, Free Graphite Editor Software download available, Dimensions: 444 x 114 x 38 mm