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Keyboard Connectors

These days, most PC keyboards have USB. connectors. However in the past, other dedicated connectors were used for keyboards.  Here are a couple:

DIN-5 (IBM-PC)
PS2 (Mini-DIN-6)

DIN-5 (IBM-PC)


Pin Name/Description
1 Clock
2 Data
3 Not connected (Reset on some very old keyboards)
4 Ground
5 +5 VDC

 

PS2 (Mini-DIN-6)


Pin Name/Description
1 DATA
2 N/C
3 GND
4 VCC (Power , +5 VDC)
5 CLK
6 N/C

 

 

 

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This site last updated 4/13/2026