Product Detail Digidesign Mbox 2 hardware features superior sound quality Four simultaneous inputs with analog and digital I/O 48V phantom power for high quality condenser microphones 24-bit/48 kHz audio, MIDI in/out , Zero-latency monitoring Powered by USB . The "Digidesign Mbox 2 USB Audio/MIDI Pro" is best product for you. We recommended Digidesign Mbox 2 USB Audio/MIDI Pro