PS/2 Port

The PS/2 port is a 6-pin Female Mini-DIN connector, named after the IBM PS/2 (Personal System/2) computers that first featured it.

There are 3 different versions of the port found on ThinkPads and the Docks and Port Replicators:

• PS/2 Mouse
• PS/2 Keyboard
• PS/2 Mouse with PS/2 Keyboard (requires a PS/2 splitter cable for the keyboard)

Older ThinkPads typically feature the combined PS/2 port, meaning you need the special PS/2 splitter cable to directly attach a PS/2 Keyboard.
On Docks and Port replicators you can either find the combined port, or two individual ports for Keyboard and Mouse.

Current ThinkPads no longer have a physical PS/2 port, but still have the logic integrated, all that is required is to attach the ThinkPad to a supported Dock or Port Replicator with a PS/2 port.

• Wikipedia article on PS/2 Port

Models featuring this Technology

• ThinkPad 220, 560, 600
• ThinkPad A20m, A20p, A21e, A21m, A21p, A22e, A22m, A22p
• ThinkPad T20, T21, T22, T23

Docks and Port Replicators featuring this Technology

NOTE!

These devices only feature pass-through functionality, the actual PS/2 port logic needs to reside in the ThinkPad for the port to work

• ThinkPad Port Replicator
• ThinkPad Port Replicator II
• ThinkPad Essential Port Replicator
• ThinkPad Dock
• ThinkPad Dock II
• ThinkPad Advanced Dock
• ThinkPad Advanced Mini Dock
• ThinkPad Mini-Dock
• ThinkPad X4 Dock
• UltraBase X2
• UltraBase X3
• UltraBase X4
• ThinkPad 365 Port Replicator
• ThinkPad 365X Port Replicator
• ThinkPad 380/385 Port Replicator
• ThinkPad 560 Port Replicator
• ThinkPad Enhanced Port Replicator
• ThinkPad Port Replicator with Advanced EtherJet
• SelectaBase Model I
• SelectaBase 600
• SelectaBase 770
• ThinkPad MultiPort
• ThinkPad MultiPort II
• ThinkPad Dock I (3545)
• ThinkPad Dock II (3546)
• ThinkPad Port Replicator Model 1
• ThinkPad Port Replicator Model 2