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A much smaller modern alternative to the bulky 16K Epson HX-20 RAM expansion
A modern recreation of the Sharp CE-158X Serial / Parallel interface for the PC-1500, PC-1500A, PC-1600 pocket computers
Multiple ROM images for your vintage computer with the turn of a swtich.
The Classic version of the ubiquitous REX module for the M100 family of computers.
Banked RAM or Banked RAM/FLASH for Sharp PC-1500, PC-1500A
Serial port adapters for your Backpack drive