IIRC, that’s electrically compatible with the smaller, more fragile PS/2 connector. The adapters are just wiring it down to the smaller connector (and maybe some impedance matching resistors?).
Should also work with a USB to PS/2 so you can use it on a modern machine if you want. Some modern keyboards are still backward compatible as well. I have a USB keyboard I can use on my old Din machines using two adapters.
Fairly certain my first computer used something like this for the keyboard. I did not have a mouse.
The venerable DIN connector!
That thing was a monster!
IIRC, that’s electrically compatible with the smaller, more fragile PS/2 connector. The adapters are just wiring it down to the smaller connector (and maybe some impedance matching resistors?).
Only if it’s an AT keyboard. XT keyboards are incompatible and require active conversions. They use the same port.
I did have a converter from this to a ps/2 connection when I got a newer computer.
Should also work with a USB to PS/2 so you can use it on a modern machine if you want. Some modern keyboards are still backward compatible as well. I have a USB keyboard I can use on my old Din machines using two adapters.