An AC Adapter is included. One gain knob is missing. Software not included. Features: Professional sound quality Powered by FireWire or included power supply Supports up to 24-bit/96 kHz resolution 4 analog inputs (2 XLR/1/4 TRS combo jacks & 2 1/4 TRS jacks) 6 analog outputs (1/4 jacks) 2 instrument DI inputs on the front panel 2 channels of S/PDIF digital I/O (RCA) Built-in phono preamp input (RCA) for direct turntable connection 1 MIDI input and output (16 channels in/16 channels out) MIDI Time Stamping (MTS) support for superior timing and accuracy BNC word clock I/O Low-latency monitoring Dedicated studio monitor outputs with volume control 2 stereo headphone outputs with independent volume controls 48V phantom power for condenser microphones