Hardware pinouts information and cables schemes

ATA (50) internal pinout

hard drive connector

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This connector is mostly used for 2.5 IDE HDD of laptops and some other device. Equal to ATA (44) connector, except 50 pin connector used.

50 pin IDC male connector layout

50 pin IDC male connector
at the controller & peripherals



Although there are 50 pins in the plug, the mating receptacle need contain only 44 pins (the removal of pins 5 and 6 provides room for the wall of the receptacle). The first four pins of the connector plug located on the device are not to be connected to the host, as they are reserved for manufacturer's use. Pins 5, 6 are keys, and are removed.

Pin Name Dir Description
1  Vendor specific
2  Vendor specific
3  Vendor specific
4  Vendor specific
5  keypin
6  keypin

Note: Direction is Controller relative Devices (harddisks).

Related Links:
Pinouts.ru > Hard drives connectors pinouts listing >  Pinout of ATA (50) internal and layout of 50 pin IDC male connector and 50 pin IDC female connector
Document status: correct
Source(s) of this and additional information: Sci.Electronics FAQ: Repair: Pinouts FAQ 3 reports
Last updated at Tue Jun 19 2007. Submit additions or corrections for this document. Is this document correct or incorrect? What is your opinion?
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