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May 16th, 2007 by Charles Jefferies

Power Connector


Power Connector
 Reference Guide - Hard Disk Drives 
  • A Brief History of the Hard Disk Drive
  • Construction and Operation of the Hard Disk Drive
    • Hard Disk Operational Overview
    • Hard Disk Platters and Media
    • Hard Disk Read/Write Heads
    • Hard Disk Head Sliders, Arms and Actuator
    • Hard Disk Spindle Motor
    • Hard Disk Connectors and Jumpers
      • Power Connector
      • Data Interface Connector
      • IDE/ATA Configuration Jumpers
      • SCSI Configuration Jumpers
      • LED Connector
    • Hard Disk Logic Board
    • Hard Disk Cache and Cache Circuitry
    • Hard Disk Form Factors
    • Hard Disk Packaging and Mounting
  • Hard Disk Geometry and Low-Level Data Structures
  • Hard Disk Performance, Quality and Reliability
  • Hard Disk BIOS and Capacity Factors
  • Hard Disk Interfaces and Configuration
  • Hard Disk Logical Structures and File Systems

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.

A standard hard disk power connector. Note the
"4, 3, 2, 1" pin markings on the logic board, and the
square shape of solder pad for pin #1.

Next: Data Interface Connector

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