[Nikky]

Spoj / konverzija na USB:
1 - "ljubičasti" PS2 to USB adapter > https://www.startech.com/en-us/cables/gc46mfkey

2 - "aktivni" PS2 to USB adapter > https://www.dsi-keyboards.com/shop/a...o-usb-adapter/
https://www.clickykeyboards.com/prod...ort-usb-cable/

3 - Hard core konverzije
https://www.johnhawthorn.com/2020/07...rd-controller/
https://blog.lmorchard.com/2016/02/2...lm-controller/

Hoće li raditi 1. varijanta (jeftini, samo spojeni odg. pinovi) ovisi o chipu / elektronici u tastaturi, neke hoće a neke neće.
Razlog je šta je na PS2 portu napajanje 12V a na USB - u 5V.
Zbog toga 2. varijanta ima više šansi da će raditi.

Čisto informativno model iz '92 "samo" $200 > https://www.clickykeyboards.com/prod...ibm-10-jan-92/

EDIT: Još informacija za konverziju Model M PS2 to USB > https://geekhack.org/index.php?topic=82847.0
Adapteri sa kojima radi:
https://www.amazon.com/SANOXY-PS2-Ke.../dp/B000BSJFJS
https://www.ebay.com/itm/Ugreen-USB-...-/162520645998