Rapidus – accelerator board for Atari XL/XE by Lotharek

726.00 768.00  Tax included



Rapidus – accelerator board for Atari XL/XE

Hardware, manuals, FAQ, and other info on manufacturers website – HERE

Rapidus is an internal accelerator board for the 8-bit Atari series.

Rapidus features:

  • internal CPU turbo card for Atari XE,
  • WDC 65C816 micro processor operating at 20 MHz!!!
  • managed by Xilinx Spartan6 FPGA and XC95XL CPLD devices,
  • 1024kb of zero waitstate SRAM,
  • up to 30.5MB of storage ram – SDRAM clocked at 160 MHz!!!
  • 512kB of Flash memory (256kB is reserved for FPGA cores, 256kB for OS and New Device handler)
  • 256b of EEPROM,
  • high-speed bus connector for external I/O interfaces, DMA support,
  • working modes, fully software-controlled  – on-screen bios menu, accessible by pressing INV ( and hold) + RESET
  • low power consumption due to DC/DC converters, no extra power supply required
  • simple installation: put Rapidus board in place of old 6502C and just solder 3 wires, or use an Adeptus board – this depends on the model of your computer. In this case, you don’t have to solder any wires.


  • Do not attempt to install it by yourself if you are not skilled enough and do not feel confident with soldering iron!
  • XL version comes with a special adapter – ADAPTUS
  • RAPIDUS UPGRADE may be very problematic with the ULTIMATE 1MB upgrade or VBXE. Please, install it as a standalone mod only!
  • in the XE series, you will need extra 4-5 precision dip sockets to build the socket tower to lift RAPIDUS PCB over cart SLOT. Sockets are NOT INCLUDED!


  • RAPIDUS board
  • 3pin Molex connector


Additional information

Weight 0.25 kg
Rapidus for Atari

XE series, XL series