24-bit 192 kHz (Pro Tools LE software supports sample rates up to 96 kHz) 8 input and 8 output channels at 4 mic inputs with 48V phantom power and high-pass filter (2 XLR / DI combo inputs, 2 XLR) 4 Line inputs (6.3mm stereo jack) 2 unbalanced line inputs (2 RCA, 1 3.5mm mini jack) 6 balanced line outputs (6.3-mm stereo jack) 2 headphone outputs (6.3-mm TRS) with separate volume controls, digital S / PDIF stereo input and output 1 MIDI input and 1 MIDI output word clock input and output monitor bus with Mono, Mute, Dim, Alt Source and Speaker A / B / C keys separate monitor volume control integrated DSP unit for flexible headphone mixes and reverb effects integrated guitar tuner (tuner) Soft-Clip Limiter Programmable Pro Tools multi-function button Bus-Powered for Windows XP and later, Intel Mac OSX 10.5.8 and higher, ASIO, Core Audio, WDM, MME and multi-client drivers including Pro Tools LE Software24 bit 48 kHz compatible with most popular audio applications (Pro Tools LE ®, Logic, Live, Cubase and others) USB connector to power supply via USB bus for maximum mobility professional circuits and converters for superior audio quality sample rates to 24-bit, 48 kHz mixer control for latency-free recording hardware configuration: the same 2 input and 2 output channels, an XLR combo input (Mic / Line) 48-V phantom power, 2 instrument inputs (1 DI, 1 Line / DI, 6.3-mm jack), 2 balanced monitor outputs (6.3mm jack), 1 stereo headphone output (6.3-mm jack), monitor volume control Bus-Powered for Windows XP and later, Intel Mac OSX 10.5.8 and later, ASIO, Core Audio, WDM, MME and multi-client drivers including Pro Tools LE software.