Amiga Hardware Database Expansion cards

Memory and Storage Technology, Australia
trapdoor slot
  • provides a total of 2.5 MB Chip RAM using bank-switching technique
  • works with 1 MB Fat Agnus and Kickstart 1.3 only
  • bank-switching is realized by software - blocks of memory can be switched between Chip and Fast RAM (or disabled) anytime, except for every vertical sync pulse
  • sixteen DIP sockets filled with 2 MB RAM
  • uses 256k×4 DIPs
  • the main board connects to the trapdoor slot
  • an adaptor board connects to Gary's socket
  • battery backed up clock

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