Fwibbler, it appears SA110 is correct. Checking specs for this HDD, that is the ide connector. Is standard 2.5" device 44 pin connection with the usual 40pin IDE signal connections plus four pins for powersupply. the black plastic visible is likely to be a female connector directly on the motherboard - no cable needed as somebody has done a nice tight design. You will need a male plug at the end of your standard IDE cable to connect into this, probably buy a gender changer cable (high density IDC male -> ordianry IDC male) and then plug a standard 40way cable into that. I have played with many compaq/dell boxes that use slimline laptop CD-ROM drives with the laptop style 44pin ide connector, and they drive multiple devices fine - so long as you don't expect the weedy little power on the 4 extra lines to drive them. I'd like to see the option of a CD-ROM in the final puplicly released system - or at least the option as I don't want my new RISC OS machine limited to kiosk duty.