GuitarU – 24-Bit 96/192KHz 1 guitar-In/2-Out USB Recording Interface – 2×2 analog I/O full duplex recording and playback – ICON innovative unique guitar preamp with individual gain control. – 2 analog outputs on 1/4″ TRS jacks – Master volume control on the top panel – 1 headphone output with assignable source and individual volume control – USB2.0 High Speed equipped and USB bus-powered – Supports DirectSound, WDM and ASIO2. 0 – Compatible with Mac OS (Intel-Mac) and Windows XP, Vista (32-bit/64-bit) & Windows 7 (32-bit/64-bit) – Full duplex, simultaneous record/playback – Rugged metal construction with rubber jacket