PS/2 Keyboard & Mouse Port Terminators, from Vetra
PS/2 interface - Deskthority wiki
Insight - How PS2 Connector Works
Amazon.com: PS2 to USB Female,PS/2 Male Converter Changer Adapter for Keyboard Mouse 2pcs by Oxusbor(Notice:Can't Match All Motherboard,Have Matching Problem) : Electronics
Help with PS/2 mouse header connection - wiring for SS7 MB. \ VOGONS
ps2 - How can I insert my PS/2 mouse in a USB port? - Super User
What Are PS/2 Ports and PS/2 Connectors?
PS/2 port - Wikipedia
PS/2 port - Wikipedia
USB to PS2 Adapter to Use Your Old Mouse and Keyboard
Amazon.com: GELRHONR USB to PS2 Cable,Dual PS2 Plug Active USB to PS2 Adapter Converter for Keyboard Mouse Bar Code Scanner-Black : Electronics