Hard Disk RepairHard Drive Power Connector DATARECOVERYUNION.COM16 years ago4 years ago01 mins Hard disk drives use a standard, 4-pin male connector plug that takes one of the power connectors coming from the power supply. This keyed, 4-wire plastic connector provides +5 and +12 voltage to the hard disk.Post navigationPrevious: PCBA, control circuitry (Printed Circuit Board Assembly)Next: Data Interface Connector or Card