4x4 usb 2.0 audio/midi interface for recording microphones and instruments. Audiophile 24-bit/192 khz resolution for professional audio quality. Compatible with popular recording software including avid pro tools, ableton live, steinberg cubase, etc. Streams 4 inputs / 4 outputs plus 1x midi i/o with ultra-low latency to your computer, supporting mac os x and windows xp or higher. 4 state-of-the-art, midas designed mic preamplifiers with +48 v phantom power.