you will need this adapter if you have a keyboard with an old-style AT plug (large DIN plug) and your computer only has a new-style PS/2 port (small DIN socket). Insert the adapter into the PS/2 port of your computer and attach the keyboard directly.
Sandberg Adapter AT-keyboard on PS/2
Sandberg Adapter AT-keyboard on PS/2. Connector(s): PS/2, Adapter type: AT-keyboard. Color of product: White