Yesterday when I got off work, I found my mouse has lost from my computer, then I tried to find it, finally I found in toy box of my son. I was very surprised finding mouse adapter has broken. I used mouse with usb connector because my USB port has already full, so I used USB-PS/2 adapter to connect to PS/2 port.

I don’t have much time to find out USB-PS/2 adapter in the market, finally I asked my friend about this, he gave me wiring configuration for USB to PS/2 connector.

The wiring is very simple as the following:

USB Connector at the Mouse
Pin No 1 = VDC +5V
Pin No 2 = Data -
Pin No 3 = Data +
Pin No 4 = Ground

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