How to make your own ps/2 to usb convertor for old keyboards - Electrical Engineering Stack Exchange
Amazon.com: SANOXY PS2 Keyboard to USB Adapter : Electronics
Amazon.com: Tripp Lite Minicom PS2 to USB Converter for KVM Switch and Extender, Pure Hardware Solution, TAA GSA Compliant, 3-Year Warranty (0DT60002) : Electronics
Ez-PU21 PS2 to USB Review Testing and Teardown – Drudge TV
USB to PS/2 Convertor - Instructables
Can I replace a keyboard's PS/2 cable with a USB mouse cable? : r/techsupport
PS/2 to USB adapter PCB - deskthority
N4VLF : PS/2 Keyboard to Parallel Adapter
Sprites mods - Macintosh SE/arm - Keyboard/mouse
PS2 To USB Keyboard Converter Also Logs Your Keystrokes | Hackaday