Have you converted an old XT/AT keyboard to work with USB (not PS/2 but big DIN-5 connector) by soldering or using adapters? - Quora
Amazon.com: SANOXY PS2 Keyboard to USB Adapter : Electronics
Amazon.com: StarTech.com Replacement PS/2 Keyboard to USB Adapter - F/M - Keyboard adapter - PS/2 (F) to USB (M) - GC46MFKEY, Purple : Electronics
How to connect older MIDI keyboards to USB (MIDI to USB cable) - YouTube
Goldtouch V2 Adjustable Comfort Keyboard | PC Only (USB) - GTN-0099
ibm pc - How can I connect a DIN plug keyboard to USB? - Retrocomputing Stack Exchange
Glorious Coiled USB-C Artisan Braided Keyboard Cable for Mechanical Gaming Keyboards Black GLO-CBL-COIL-BLACK - Best Buy
PS/2 Keyboard to USB Adapter - F/M - PS/2 Cables | StarTech.com
PC Keyboard Adapter , plug a USB Keyboard or mouse into a PS/2 port on the PC | eBay
Logitech K120 USB Standard Computer Keyboard
MIDI to USB Cable(6.6FT), USB to MIDI Cable Converter 2 in 1 PC to Synthesizer Music Studio Keyboard Interface Wire Plug Controller Adapter Cord 16 Channels, Supports Computer Laptop Windows and Mac -
tinkerBOY ADB to USB Keyboard/Mouse Active Adapter from tinkerBOY on Tindie
Standard USB Male to Dual Female PS/2 Keyboard and Mouse Port
ps/2 to USB adapter converter for keyboards – ClickyKeyboards