Has anyone ever used a GCDU1A in a CIX40? I bought a CIX40 on eBay and it was installed.
Seems like they are interchangeable CTX28 to CIX40.

I read that it was not compatible ,, did you try the GCDU1A in the CIx40?? what happened??,, The GCDU2A is for the CIX40.

It fits like it would work. All pins line up.
I have not powered it up because I'm afraid it might freak!