If your board looks like this, you need to order a GH-01.
  – Mounting holes are the same size.
  – Two, 4-wire connectors.
  – SW2, 3 and 4 share a common line (highlighted in red).

If your board looks like this, you need to order a GH-03.
  – Mounting holes are the same size.
  – Two, 3-wire connectors.
  – All switches  share a common line (highlighted in blue).

If your board looks like this, you need to order a GH-02.
  – Mounting holes are different sizes.
  – One, 8-wire connector
  – SW2, 3 and 4 share a common line (highlighted in red).

If your board looks like this, you need to order a GH-04.
  – Mounting holes are different sizes.
  – Two, 3-wire connectors.
  – All switches  share a common line (highlighted in blue).

If your board looks like this, you need to order a GH-05.
  – Mounting holes are slightly different sizes.
  – One, 6-wire connector
  – All switches share a common line (highlighted in purple).

If your board looks like this, you need to order a GH-04.
  – Mounting holes are different sizes.
  – Two, 3-wire connectors.
  – All switches  share a common line (highlighted in blue).

If your board looks like this, you need to order a GH-04.
  – Mounting holes are different sizes.
  – Two, 3-wire connectors.
  – Small holes along top and bottom margin
  – All switches  share a common line (highlighted in yellow).

This board is noted by:
  – unique ‘notches’ at all 4 corners as well
  – two zero ohm surface mount jumpers
  – four small holes surround each button location
  – single, 8-pin connector

This board is noted by
  – single mounting hole
  – two, 3-pin connectors.

Initial research indicates this board will work on ALL WoR guitars on all game systems.