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 Pres Bit/Sample Ratesort icon List Price Shop New Shop Used Notes Details
Xitel MD-Port DG2 USB 1 $70.00

Toslink optical output, to connect to an optical digital device. No analog.

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Xitel MD-Port I/O USB 1 $70.00

Analog input, toslink optical output.

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Griffin iMic (original) USB 1 $35.00 Shop New

USB, 2 channel in and out on 1/8 inch jacks, switchable mic/line input. This has been upgraded at least once, still called iMic.

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Griffin USB Audio Hub USB 1 $39.00 Shop New

Not an audio interface. USB, 4-port hub optimized for use with USB audio devices. Discontinued.

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Griffin PowerMate USB 1 $45.00 Shop New

Not an audio interface, volume knob/programmable scrolling controller for any app.

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Telex P-500 USB 1 $60.00 Shop New

Analog-to-digital input only? Discontinued, manufacturer website was formerly...

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Onkyo DW-S500 USB 1 $400.00 Shop New

Stereo system with USB input, bookshelf sized.

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M-Audio AudioSport Duo USB 1 2 $350.00

2 inputs, works as standalone A/D with S/PDIF out, comes with Logic Delta software. (Later renamed as the Duo USB?)

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M-Audio AudioSport Quattro USB 1 $350.00

4 in, 4, out, MIDI i/o, comes with Logic Delta software. Expandable via the...

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Sound Devices USBPre USB 1 $695.00
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Presonus FIREstation
FireWire 400
mLAN
2 $899.00

8 ch i/o, tube emulation, ADAT i/o, S/PDIF, MIDI and onboard mixer for zero latency monitoring. Works as standalone 2 ch mic pre and 8...

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Radikal Technologies SAC-2.2 USB 1 $1849.00
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Apogee AMBus 1394 FireWire Card
FireWire 400
mLAN
$695.00

Not an audio interface. FireWire 400 (mLAN compatible) interface card for Apogee gear with AMBus slots, such as the Apogee Trak2Mic...

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Xitel Pro HiFi-Link USB 1 $99.00

2 channel RCA analog out, S/PDIF coax output, TOSLink optical output, comes with (3) 30 foot cables: 1/8"-2RCA, S/PDIF coax, TOSLink...

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Griffin PowerWave USB 1 $99.00 Shop New

USB, 2 in, 2 out, 15 watt amplified speaker output. Discontinued.

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Onkyo MSE-U33HB USB 1 1 Shop New

2-in, 2-out, with 3-port USB hub, mic input (1/8"?) and GM/GS synth sound set.

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Onkyo SE-U55 USB 1 1 Shop New

2-in, 2-out, S/PDIF coax I/O, optical I/O, mic in (1/8"), headphone out.

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Onkyo UD5 USB 1 $79.00

USB, digital optical out only. PC only?

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Line 6 GuitarPort USB 1 $229.00 Shop New

Guitar input with prerecorded tracks to jam with.

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TC Electronic PowerCore FireWire FireWire 400 $1745.00 Shop New

Not an audio interface. FireWire processor adds DSP horsepower to any VST or MAS DAW (PC or Mac). Comes with a bunch of plug-ins. Other...

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