It appears that's just got +5V and +12V, if the wiring colors are yellow and red for those two wires.. The rest appear to be ground.. You could adapt a regular molex to that quite easily.. Just cut ...
On page 4, there is an "IDE Power" connector. It looks a lot like a 4 pin CPU fan connector, but it (obviously) provides different voltages that are appropriate for 3.5" IDE drives (5V, 12V) and the ...