I don't know about a compact ADB keyboard. But if you're sticking a GS motherboard in a laptop there are pads for an old //e style keyboard connector. (because the same motherboard could be used for the //e-?//gs upgrade) So maybe you could use an old //e keyboad (which had no keypad). I'm not sure (but suspect) it would be compatible with the //c keyboard-just right for a laptop.