I am afraid you might have to look it up on the drive or look for the drive specs document on the Internet.
Should have been standard and have 1st pin right after the jumpers but this is not the case always (on IDE drives as well).
There is no how to. There is a BOM topic on the site that lists the parts you need. Found the BOM, thanks. Here it is, for future reference: https://www.exxoshost.co.uk/forum/viewtopic.php?f=76&t=3035 As for my second question, could this fit to an STE or MegaSTE with a CPU re-locator or an adapter...
I bought this adapter and gladly received it. Clear cut image on TFT monitor etc and seems to be an excellent product. https://www.exxoshost.co.uk/forum/viewtopic.php?p=6938#p6938 I also bought a USBA2USBA cable to feed it with the 5V and downloaded BlowUP software referred in the same post, above....