Original Price according to SPOT/SPEX:
Printer interface with built-in software and freeze button. Fully compatible with all ZX commands. Compatable with all Spectrums except +2 and +2A. 8K ROM includes Multi-toolkit with tools to view frozen programs. 8K RAM to use as you like. Can be used as a printer buffer or to load in Lifeguard (infinite lives finder) or Genie (disassembler).
Centronics parallel printer interface
Centronics interface; prices with/without through-port