Here it is diagnostics cartridge for Atari 400/800 or 130 / 65XE. This cart is also compatible with 8KB / 16KB generic cartridges.
I have two versions: one is for Atari 400/800 and second one is for Atari 130 / 65XE. Let me know your configuration …. or if you wish I can burn your own ROM in to it.
6 in stock