PDA, Tablet PC, MP3 players and other portable devices
may be used with any mini-usb compatible device

 

USB Pin
Number
Description Mini-USB Pin
Number
Wire
Color
1 VCC +5V, up to 500 mA by USB 2.0 standard 1 Red
2 USB Data- 2 White
3 USB Data+ 3 Green
4 USBOTGID. Shorted to GND, N/C, or shorted to GND via resistor  4  
4 GND 5 Black

Colors do not mean anything - just make sure the colors match from end to end. Using the de-facto color is for industry types only.

The maximum length of a standard USB cable (for USB 2.0 or earlier) is 5.0 metres (16.4 ft). The primary reason for this limit is the maximum allowed round-trip delay of about 1,500 ns. If USB host commands are unanswered by the USB device within the allowed time, the host considers the command lost.

The data cables for USB 1.x and USB 2.x use a twisted pair to reduce noise and crosstalk. USB 3.0 cables are more complex and employ shielding for some of the added data lines (2 pairs); a shield is added around the pair sketched.

5 pin Mini-USB type B plug connector layout
5 pin Mini-USB type B plug connector
at the cable
4 pin USB A plug connector layout
4 pin USB A plug connector
at the cable
According to 3 reports in our database (2 positive and 1 negative) this pinout should be correct.

Is this pinout
Mini-USB cable visual pinout:
Mini-USB cable diagram
click to enlarge
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