In comp.sys.ibm.pc.hardware.storage Maxim S. Shatskih wrote:
I don't think there ever were such drives. There were some that had the
traditional 4 pin molex connector

Is the usual disk/CD power connector 4pin or 5? Sorry, do not have this at
sightseeing distance, only remember that it has +-5V and +-12V (and maybe
ground too?)

+5-GND-GND-+12, i.e. 4 pins. SATA requires also 3.3V, but most drives do
not actually need it at the moment.

Arno