Keith McMillen K-Mix, Audio Interface & Programmable OSX Mix Controller, Stand alone operation, 24bit AKM converter, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz, 8 Balanced inputs (2x XLR / jack combi socket, 6x jack 6.35 mm) +28 dBu, 8 balanced outputs (1/4 ""jack), 48 Volt phantom power, 2 unbalanced outputs, 2 Ultra low-noise Pre preamplifier, 8 Touch fader, Master Touch fader with 24 LEDs, 4 Touch knobs with 16 LEDs each, 9 Channel Select buttons, 4 Bank Select buttons, 17 Function keys, Compressor / Limiter, Noise Gate per channel, 3-band semi-parametric EQ per channel +/- 18 dB cut / boost, Master Reverb, 4 Surround Panner, 5.1 and 7.1 surround, 1 Micro USB (Audio I / O, MIDI I / O, Power), 1 mini USB (MIDI I / O via KMI Expander. Power), System requirements: Mac OSX 10.7 and later, Windows 7, 8 or 10 (only 64 bit), Dimensions: 235 x 167.5 x 40 mm, Weight: 709 g