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
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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Xitel HiFi-Link USB 1 20bit $50.00 Shop New

1/8" out only, comes with 30 foot 1/8"-2RCA cable

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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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Emagic A62 m USB 1 24bit/96.0k $399.00 Shop New

Two analog outputs, six analog inputs, S/PDIF, headphone out, built-in USB hub, master/slave clock source switch, adjustable zero-...

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Emagic A26 USB 1 24bit/96.0k $399.00 Shop New

Six analog outputs, two analog inputs, S/PDIF, headphone out, master/slave clock source switch, adjustable zero-latency hardware...

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Ego Systems (ESI) Waveterminal U2A USB 1 24bit/48.0k $249.00

2in-2-out analog, S/PDIF coaxial & optical digital I/O with sample rate conversion.

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Ego Systems (ESI) Waveterminal U24 USB 1 24bit/48.0k $249.00

2in-2-out analog (1/4" - unbalanced), headphone amp, S/PDIF coaxial & optical digital I/O with digital format and sample rate...

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Ego Systems (ESI) GIGAPort AG USB 1 24bit $199.00

8 channel analog output, S/PDIF out, headphone out. OS X drivers available.

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Ego Systems (ESI) GIGAPort DG USB 1 16bit $199.00

ADAT 8-channel output only.

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M-Audio Sonica USB 1 24bit/96.0k $90.00 Shop New

1/8" analog line out, S/PDIF optical out which does Linear PCM, AC3, or DTS.

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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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Radikal Technologies SAC-2.2 USB 1 $1849.00
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M-Audio Audiophile USB USB 1 24bit/96.0k $249.00 Shop New

2 analog I/O, audio and MIDI interface, S/PDIF, headphone out

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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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