No. But it is a standard PCB edge-connector with a 2.54mm / 0.1 inch pitch. Same as a ISA or ZX Spectrum type (except a location slot in a different place and different number of contacts).stephen_usher wrote: ↑10 Apr 2019 17:46Does that give all the contact pitch and board thickness details? (I can't have a look at the moment as I'm at work.)1024MAK wrote: ↑10 Apr 2019 15:33The edge-connector details are in the Memotech BASIC Tutor Reference and Operators Manual / Memotech Operator's Manual (on one of the pages that has the schematic diagrams) and also in the MTX 500/512 Service Manual and Technical Information manual (PDF page 23, paper page 20).