Computer Connectivity:USB Form Factor:Rackmount Simultaneous I/O:18 x 18 Number of Preamps:8 Phantom Power:Yes A/D Resolution:Up to 24-bit/192kHz Built In DSP/FX:Studio Magic Plug-in Suite Analog Inputs:2 x XLR-1/4" combo (mic/line/Hi-Z), 6 x XLR (mic/line) Analog Outputs:8 x 1/4" TRS (line), 2 x 1/4" (main out) Digital Inputs:1 x Optical (ADAT), 1 x Coax (S/PDIF) Digital Outputs:1 x Optical (ADAT), 1 x Coax (S/PDIF) Headphones:2 x 1/4" MIDI I/O:In/Out USB:1 x Type C Clock I/O:Word Clock Out Software:Studio One Artist, UC Surface Control Software OS Requirements - Mac:OS X 10.8.5 or later, iOS 9.3 or later OS Requirements - PC:Windows 7 SP1 or later, Android 5.0 or later Rack Spaces:1U Power Supply:12V DC power supply (included) Height:1.75" Width:19" Depth:5.5" Weight:4.8 lbs. Manufacturer Part Number:STUDIO 1824C