Retrobit – Kartridże, akcesoria i płytki do Commodore 64, ZX Spectrum, Atari | Polska produkcja
Atari 1200XL Cartridge Slot Extender PCB
This PCB simply extends the internal cartridge slot slightly, allowing certain cartridges to now be connected to the 1200XL model.
It does not contain any active or even passive components. Literally, it is just an edge connector soldered to a printed circuit board.
https://www.pcbway.com/project/shareproject/Atari_1200XL_Extender_Cart_b7bbd0f9.html
