M0115 serial keyboard kit
This kit came out of an Apple Extended Keyboard, M0115 that had been converted from ADB ports to DB/DE 9 Serial.
Other than some heavy duty shielding in every nook and cranny, and cutting the keyboard base for the larger ports, the basic guts – switches and pcb remained Apple. The ports and converter board are Mitek.
The 9 pin male Ports are stamped PCA 010164 and PCA 020166. The board is stamped PCA 020220 and contains an Apple Extended Keyboard ROM chip and plugs into that socket.
I have no idea what system this modified keyboard was used on, nor if the parts work – I was unable to test it and a couple switches were broken, so it became parts.