R61i Expresscard

[jsailorca]

Note: I am posting in this forum since R61i is practically identical to T61.

I have a R61i (14.1") which does NOT have the PC Card/ExpressCard assembly but the PC Card itself.
I want to get one el cheapo.
I know the FRU for PC Card/ExpressCard assembly is 42X3827 (which is compatible with the T61) according to R61/R61i HMM.
I also have seen FRU for PC Card/Expresscard assembly 42W3436 for R400/T400, which has 42X3828 advertised online
as the FRU (of which cannot be found as a valid FRU on Lenovo site??).

Is 42W3436 (or 42X3828) compatible to 42X3827? i.e.: Does R61/T61 use the same part for PC Card/Expresscard
assembly as R400/T400 but just renamed with different FRUs (42W3436 or 42X3828)?

[jsailorca]

Bump. Could anyone help on this?