The UMC1820 is an 18-in/20-out USB audio interface built for serious multitrack recording, with 8 Midas-designed microphone preamps giving it enough simultaneous inputs to track a full band at once. ADAT expansion allows you to add even more inputs for larger sessions, and 24-bit/96kHz conversion keeps recordings detailed and clean. The UMC1820 is built for home and project studios that have outgrown a simple two-input interface. Features: 18 × 20 USB 2.0 audio/MIDI interface with ADAT I/O for recording microphones and instruments Audiophile 24-bit/96kHz resolution for professional audio quality Compatible with popular recording software including Avid Pro Tools, Ableton Live and Steinberg Cubase Streams 18 inputs and 20 outputs of ultra-low latency audio to your computer, supporting Mac OS X and Windows XP or higher 8 Midas-designed microphone preamplifiers with +48V phantom power Optical I/Os supporting S/PDIF, ADAT and S/MUX formats up to 96kHz Simultaneous use of all analog, coaxial S/PDIF, optical ADAT and MIDI signals Zero-latency direct monitoring of all analog inputs while recording ADAT input allows for combination with Behringer ADA8200 (not included) for expanding to a total of 16 Midas-designed microphone preamplifiers Input/playback mix control and stereo/mono switch for direct monitoring Powerful dual headphone outputs with individual level controls and monitor A/B source select for DJ-style cueing Main outputs with dim, mute and dedicated main level control 19" 1U cabinet with detachable rack-mount brackets Rugged impact-resistant metal chassis