Didn't
someone also make Clipper and/or
Transputer boards for the PC?
Transputer ones certainly existed; IIRC seeing one (I think it was Inmos
themselves) which supported plug-in TRAM modules at the far end of the board
(I had a photo of it too, but can't find where I've filed it right now)
There are certainly transputer boards for the PC. The most common in my
experience si the B004, which is am ISA card with a T4 or T8 chip on it,
rows of DIP DRAM, the link interface and ISA bus logic and not a lot
else. It has the nromal link connectors on the rear bracket so you can
hang more transputers off it. There's at least one non-INMOS clone of
this board.
There was also a TRAM motherboard for the PC. I forget the number
(B008?) It has the link interface (with ISA logic) and IIRC a C004 link
swithc on it. You can fill it with TRAMs (TRAnsputer Modules, the
simplest being transputer + RAM, but ones iwth SCSI, GPIB, ethernet, etc
interfaces exist, as does one with a vector processor chip (alongside the
transputer).
-tony