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5 pin USB HDD case proprietary connector layout
5 pin USB HDD case proprietary connector
at the disk drive board
4 pin USB A / USB B / mini-USB jack connector layout
4 pin USB A / USB B / mini-USB jack connector
at the computer
Cable wiring diagram for USB cables used on some portable HDD cases.

Enclosure Pin
Name

 Enclosure Pin
Number		 Direction Host Pin
Number		 Host Pin
Name		 Description
VCC 5 --- 4 VCC +5v Power
D- 4 <--> 3 D- Data -
D+ 3 <--> 2 D+ Data +
GND 1 --- 1 GND Ground

This odd connector is used on some cheaper USB HDD enclosures. It's similar to the SIL connectors used for headers. The numbering may be reversed to what you have for USB; I arbitrarily numbered the pins.  

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