Multiple choice hardware hat kind of connectors are used to connect a PC power supply to a hard drive? AT molex mini-molex P9 chamfer Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Molex connector (specifically the 4-pin peripheral connector) was the standard for powering PATA/IDE hard drives and optical drives. Mini-molex was used for floppy drives, and P9 was part of the AT-style motherboard power connection.