USB to PS/2 mouse or keyboard adapter pinout

4 pin USB A or USB B plug connector layout
4 pin USB A or USB B plug connector at the USB cable


6 pin mini-DIN male (PS/2 STYLE) connector layout
6 pin mini-DIN male (PS/2 STYLE) connector

Connecting USB-mouse to PS/2 connector of computer. It works only with device which supports both interfaces (USB & PS/2).

USB Pin
Name
USB Pin
Number
Direction Usb Color PS/2 mouse controller Pin
Number
PS/2 mouse controller Pin
Name
Description PS/2 Color
VDC +5V 1 <– Red 4 VDC +5V   Red
Data- 2 -?- White 1 Data   White
Data+ 3 -?- Green 5 Clock   Brown
Ground 4 -?- Black 3 Ground   Black

Very nice to have one more empty USB connector :).

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