Pinouts of Connectors

USB internal motheboard connector pinout

layout
schematic diagram
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used for card-edge bracket additinal USB ports

10 pin IDC male connector pin-out & layout
10 pin IDC male connector  at the motheboard (may be varied)
Pin Signal Description
1Vcc +5V for USB port 1
3Data0- for USB port 1
5Data0+ for USB port 1
7GND for USB port 1
9keyed  
2Vcc +5V for USB port 2
4Data1- for USB port 2
6Data1+ for USB port 2
8GND for USB port 2
10N/Cfor USB port 2
This is a sample pinout from Epox motherboard manual. IT"S may be DIFFERENT for other motherboards.
Before connecting any external bracket you should check them and replug wires according to your motherboard manual USB pinout (if needed).
If you have no access to the motheboard manual, you can try determine pinout manually.
USE AT YOU OWN RISK! May be dangerous for your equipment!
You can easily determine position of +5V and GND with multimeter. After this, plug the bracket with this pins set correctly and try to connect some device. If your device working - fine you"ve done it. If not - try to exchange Data- and Data+ wires and try again.

Related Links:
Pinouts.ru > Different motherboard connectors pinouts >  Pinout of USB internal motheboard connector and layout of 10 pin IDC male connector

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