6 x 6 24-bit/96kHz full-duplex audio interface 4 x 4 analog I/O S/PDIF digital I/O with 2-channel PCM SCMS copy protection control Digital I/O supports surround-encoded AC-3 and DTS pass-through software-controlled 36-bit internal DSP digital mixing/routing zero-latency monitoring software configurable for +4dBu and -10dBV signal levels Apple G5 compatible - Incompatible exceptions includes Ableton Live Lite music production software, so you can make music right away frequency response: 48kHz sample rate input: +/-0.3 dB, 22Hz to 22kHz output: +/-0.2 dB, 22Hz to 22kHz 96kHz sample rate: input: +/-0.4 dB, 22Hz to 40kHz output: +/-0.3 dB, 22Hz to 40kHz dynamic range: 103dB (A-weighted) (D/A) 99dB (A-weighted) (A/D) THD: < 0.002% (D/A) 0.0023% (A/D) size/weight: 5-1/8” x 7/8” x 5-3/8”; 0.8 lbs. ASIO 2 MME Sound Manager OMS DirectX GSIF 2 Mac OS X Core Audio / Core MIDI Windows 98SE / Me / 2000 (SP4) / XP (SP2)* For 96kHz operation: Pentium III 500MHz w/ 128MB RAM For 48kHz operation: Pentium II 400MHz w/ 64MB RAM * Home and Professional Edition only. Windows Media Center Edition is not currently supported. ** M-Audio suggests you also check the minimum system requirements for your software, as they may be greater than the above. G3/G4* 500MHz G5 w/PCI-X expansion slots** - Incompatible exceptions OS 9.2.2, 128MB RAM; OS X 10.1.5, 10.2.6, 256MB RAM OMS 2.3.8 for MIDI under OS 9.2.2 * G3/G4 accelerator cards not supported ** G5 with PCI-Express expansion slots not supported. *** M-Audio suggests you also check the minimum system requirements for your software, as they may be greater than the above.