price: 9.95 USD platforms: C64,C128
Hesware's HES MON 64 cartridge for Commodore 64 or Commodore 128
These cartridges are the most popular machine language monitor for the Commodore series. These are brand new, never used.
Thousands of these cartridges were purchased back in the mid-late 80's to be included with the books on cracking Commodore software (Lockpick book series). This inventory is what is left after the books sold out.