TK-II Stereo Keyboard Replacement
Puts the PS/2 keyboard AND Stereo Pokey in your system!
Ultimate 1M compatible, Requires an additional Pokey chip (available separately or on your own)
Regular interface is a dual keyboard input with 3.5mm stereo. Small interface is the same with a single keyboard input. Audio output requires amplified speakers or direct connection to an amplifier (with speakers presumedly).
This involves a possible modification to your case. Look at the connectors pictured. The "Regular" version is the one with 2 PS/2 connectors. Either that needs to be routed outside of your case OR you will need to put a hole in your case to fit either one.
Also, if your POKEY is not socketed, it will require you to desolder and solder in a socket (not included).