i2 Control 25 USB MIDI Keyboard With 25 full size keys and 8 programmable controller knobs, the i2 Control 25 includes everything you need at a very affordable price. The i2 Control 25 is easy to use  just connect the included USB cable to your computer and you are ready to go! Class compliant driver architecture means that you dont have to download, install or configured drivers for your Mac or PC Featuring 8 programmable controller knobs, pitch bend wheel, modulation wheel, LED display, and a data slider, the i2 Control 25 gives you complete control over your MIDI software. The two MIDI Out ports means you can control and play any MIDi device, including sound modules such as the PianoBox. With octave up and down buttons and a transpose feature, you will be able to access all 88 notes on a regular keyboard. A sustain pedal socket allows you to connect a standard pedal.