Sun Microsystems Type 6 keyboard with 8 pin Mini DIN connectivity. This model has the pass through connectivity for a mouse, but is not PS/2 compatible due to the slightly different plug.

It appears to work when connected to my Ultra 5, but I am unable to properly verify as I do not have a 13W3 monitor..

The LEDs on the top row cycle through various stages of the boot process. All the keys physically work as expected with nice smooth action.

The AI bit...
The Sun Micro Keyboard Type 6 Mini-DIN 8 320-1270 is a compact and sleek keyboard designed by Sun Microsystems. This mini keyboard features a unique Type 6 layout, making it easy to use and efficient for typing tasks. With wired Mini DIN 8 connectivity, this keyboard is reliable and convenient for connecting to various devices for a seamless typing experience.