SUBCART - multi cart with SIO emulation and memory expansion for Atari XL/XE

Ultimate 1MB expansion for Atari XL/XE

DUMBCART - simpler version of AVGCART multi cart for Atari XL/XE

VBXE - Video Board XE expansion for Atari XE computers

ACID SRAM Prof for Atari XL/XE (memory replacement and 8MB RAM expansion)

ACID SRAM module for Atari XL/XE (base DRAM memory replacement and expansion)

64KB SRAM module for Atari XL/XE (base DRAM memory replacement)

Commodore Amiga Parallel port Network adaptor Plipbox (A500 A600 A1200)USB-C