The Computer Audio Interface Guide

This guide covers computer audio interfaces (sometimes referred to as "I/O"s or "breakout boxes") for PC or Mac. These provide audio input, output and additional features which improve upon any built-in audio jack. This guide does not cover internal PCI cards, just external connectors (USB, FireWire etc). See the bottom of this page for an intro to the terminology and trends.

(Sort by clicking a header. Filter by selecting a port. 238 interfaces match current criteria.)

FireWire 400 (97)       |      FireWire 800 (9)       |      mLAN (8)       |      USB 1 (121)       |      USB 2 (24)
Make Model Port Mic Pressort icon Bit/Sample Rate List Price Shop New Shop Used Notes Details
Mackie d.4 pro FireWire 400 2 $1149.00 Shop New

DJ VCA mixer with 14x8 FireWire I/O. 4 stereo inputs, 2 mic inputs, optical crossfader. Includes Tracktion 3 software.

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Apogee Duet FireWire 400 2 24bit/96.0k $599.00 Shop New

2 ch analog in on XLR, 2 ch analog in on 1/4" instrument, 2 ch analog out on 1/4", all I/O on breakout cable, headphone out, phantom...

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Ego Systems (ESI) Quata-Fire XL FireWire 400 2 24bit/192.0k $499.00

4 channel 96 kHz analog input (2 XLR/TRS combo, 2 RCA), 8 channel 192 kHz analog output (2 XLR, 2 RCA, 2 TRS stereo), headphone amp, S/...

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Tascam US-122mkII USB 2 2 24bit/96.0k $199.00 Shop New

2 analog input (2 XLR or 2 1/4" TRS or 1 instrument), 2 analog out (RCA), MIDI i/o, headphone out, includes Steinberg Cubase LE4.

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Tascam US-144mkII USB 2 2 24bit/96.0k $270.00 Shop New

2 analog input (2 XLR or 2 1/4" TRS, 1 instrument), 2 analog out (RCA), instrument input, S/PDIF i/o, MIDI i/o, headphone out.

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Tascam FireOne FireWire 400 2 24bit/96.0k $399.00 Shop New

2 analog in (2 XLR/TRS combo, 1 instrument), 2 analog out (TRS), MIDI i/o, transport controls (works with many DAW apps), function keys...

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Terratec Aureon 5.1 USB MKII USB 1 2 16bit/48.0k

2 analog input (3.5 mm, mic in on 3.5mm), 6 analog out (3 stereo 3.5mm), S/PDIF optical i/o, headphone out. 49.99 euro.

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MOTU 828 mkIII FireWire 400 2 24bit/192.0k $795.00 Shop New

10 analog i/o, 16 ch ADAT i/o, S/PDIF i/o, word clock i/o, headphone out, MIDI i/o, SMPTE, built-in hardware-based effects. AudioDesk...

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Presonus FireStudio Mobile FireWire 400 2 24bit/96.0k $400.00 Shop New

8 inputs (2 combo XLR mic/unbalanced TS instrument, 6 balanced TRS line), 2 line out (TRS), headphone out, S/PDIF I/O, MIDI I/O. Small 1...

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ART USB Dual Pre USB 1 2 16bit/48.0k $129.00 Shop New

2 ch analog in (mic/line on XLR/1/4" combo), 2 ch analog out (1/4"), powered via USB or internal 9 volt battery or optional external 12V...

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Apogee Duet2 USB 2 2 24bit/192.0k $595.00 Shop New

Built-in: 1/4" headphone out. For other I/O the Duet2 requires either a breakout cable (2 ch analog in on XLR/TRS combo for line/mic/...

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Edirol UA-25EX
USB 1
USB 2
2 24bit/96.0k Shop New

2 ch analog in (on XLR/TRS combo, one of which can take an instrument in), 2 ch analog out (on TRS and RCA), digital in/out (on optical...

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M-Audio MobilePre v2 USB 1 2 24bit/48.0k $179.00 Shop New

2 analog inputs (two XLR/TRS combo or two 1/4"), 2 analog outputs (two 1/4"), "direct monitor" mode, phantom power, headphone out

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Roland Quad-Capture USB 2 2 24bit/192.0k $349.00 Shop New

Also known as the Roland UA-55. Two analog input channels on XLR/TRS combo connectors, two output channels on TRS connectors, two...

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Edirol UA-1000 USB 2 4 24bit/96.0k $945.00 Shop New

Rackmount 10 channel in/out with tons of i/o options, ADAT i/o, wordclock i/o, MIDI, etc. Note: Windows only, no Mac support. Branded as...

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RME Audio Fireface 800 FireWire 800 4 24bit/192.0k $1799.00 Shop New

13 analog inputs (8x1/4" balanced, 4xXLR, 1x1/4" unbalanced), 9 analog outs, (8x1/4" balanced, 1x1/4"unbalanced), ADAT i/o, S/PDIF i/o....

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Tascam US-428 USB 1 4 24bit/48.0k $625.00 Shop New

4 input (2 XLR, 2 1/4" TRS, 2 unbalanced 1/4"), MIDI i/o, S/PDIF i/o, includes Steinberg Cubase LE (later included Cubasis VST) and...

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Digidesign Digi 002 (MX002) FireWire 400 4 24bit/96.0k $2495.00 Shop New

Control surface and audio I/O with 8 automated faders, 8 soft knobs, transport controls, works as stand-alone digital mixer, includes...

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Digidesign Digi 002 Rack (MX002R) FireWire 400 4 24bit/96.0k $1295.00 Shop New

I/O for ProTools (rackmounted) with 8 analog I/O, ADAT I/O, S/PDIF, MIDI, includes Pro Tools LE software. There is NO word clock I/O. (...

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Ego Systems (ESI) Octa-Fire FireWire 400 4 24bit/192.0k $699.00

8 channel i/o analog, headphone amp, S/PDIF coaxial digital I/O, 4 MIDI i/o.

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