The E-MU Xboard 25 Professional USB MIDI controller for PC and Mac offers unmatched playability, real-time control and programmability in a portable keyboard package ideal for studio and stage use. The Xboard™ 25 features fullsize, velocity sensitive keys with aftertouch, 16 programmable real-time controllers, The Xboard 25 also allows you to set discrete MIDI channels for each controller and offer unrivaled real-time control and performance features, including Snap Shot that lets you send multiple program changes and controller values by pressing a single button, and Xboard Latch Mode that enables you to define a section of the keyboard as on/off triggers - perfect for drum loops. The Xboard 25 is ultra-portable and can run on USB, battery, or AC power. The E-MU Xboard 25 features: 25 full-size professional keys with Aftertouch - the Xboard 25 is a true performance controller with a high-quality synth-action keybed Advanced studio/live performance features, like Latch Mode for triggering drum loops, Snap Shot for instantaneous program changes, and many more16 real-time controllers that can be assigned to the key performance parameters of all your favorite virtual instrumentsUSB, battery or AC powered - take your music anywherePC & Mac compatible - Windows XP, 2000, x64, Vista and Macintosh OS X drivers