DirectLOGIC D4-EE-2 EEPROM memory cartridge for the DL405 family provides 15.5K of non-volatile program storage for use in D4-440 and D4-450 CPUs. It plugs into the CPU memory cartridge slot to store the user program, with memory cleared electrically (no UV erasing required). The D4-EE-2 is the largest memory cartridge in the DL405 series, and AutomationDirect lists this item as discontinued as of July 2024, with no direct replacement available.
