M-Audio O2
The O2 is a two-octave USB MIDI controller keyboard.

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We stock both NEW and USED parts; all used electronic parts are tested and guaranteed working.
This listing reflects our current inventory and is updated in real time. If a part is shown as Out of Stock, we typically don't know when or if we might have it again - but click on the part for more info, and then you will be able to sign up for an alert when we do have it available again. By including out of stock parts in our listings, we hope to offer customers a more complete and useful resource.
We cannot diagnose repair issues by phone or email. For technical questions, we suggest posting on our Forums, where our techs - as well as other users - can offer help.

Button, M-Audio
$1.95 (Part #3803)
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$1.95 (Part #3803)

Button/switch, M-Audio
For Modulation
$5.95 (Part #3802)
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For Modulation
$5.95 (Part #3802)

Button/switch, M-Audio
$6.95 (Part #10726)
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$6.95 (Part #10726)

Contact strip, 12 note
$12.95 (Part #10724)
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$12.95 (Part #10724)

Contact strip, 13 note
$13.95 (Part #10725)
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$13.95 (Part #10725)

Display, M-Audio
$29.95 (Part #10720)
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$29.95 (Part #10720)

Jack board, M-Audio
$32.95 (Part #10716)
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$32.95 (Part #10716)

Key bushing, M-Audio
$0.95 (Part #10728)
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$0.95 (Part #10728)

Key contact board, 25-note, M-Audio
$34.95 (Part #10723)
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$34.95 (Part #10723)

Main board, M-Audio O2
$34.95 (Part #10717)
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$34.95 (Part #10717)

MIDI jack, female
$3.95 (Part #3059)
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$3.95 (Part #3059)

Panel board, M-Audio
$19.95 (Part #10722)
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$19.95 (Part #10722)

Phone jack, 1/4-inch, 4-pin PCB mount
For Sustain
$10.95 (Part #4177)
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For Sustain
$10.95 (Part #4177)

Pitch bend/mod board, M-Audio
$19.95 (Part #10718)
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$19.95 (Part #10718)

Potentiometer board, M-Audio
$29.95 (Part #10721)
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$29.95 (Part #10721)

Power inlet jack
$5.95 (Part #3062)
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$5.95 (Part #3062)

Pushbutton tact switches, 4.3mm, pkg of 10
$11.95 (Part #3130X)
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$11.95 (Part #3130X)

Slide potentiometer, 10KB, 30mm
For C9
$16.95 (Part #4744)
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For C9
$16.95 (Part #4744)

Slider knob, M-Audio
$7.95 (Part #10727)
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$7.95 (Part #10727)

Style 121U C-E-G-B group
$16.95 (Part #K121UC)
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$16.95 (Part #K121UC)

Style 121U key, top C note
$8.95 (Part #K121UC8)
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$8.95 (Part #K121UC8)

Style 121U keys, black notes group
$16.95 (Part #K121UBL)
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$16.95 (Part #K121UBL)

Style 121U keys, notes D-F-A group
$16.95 (Part #K121UD)
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$16.95 (Part #K121UD)

USB connector
$6.95 (Part #3487)
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$6.95 (Part #3487)

Voltage regulator, 7805
$2.95 (Part #2256)
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$2.95 (Part #2256)

Volume slider board, M-Audio
$14.99 (Part #10719)
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$14.99 (Part #10719)