Automation Direct D4-EE-2 EEPROM Memory Cartridge

The D4-EE-2 EEPROM Memory Cartridge from AutomationDirect provides 15.5 kilobytes of non-volatile program storage for DirectLOGIC DL405 CPUs, specifically the D4-440 and D4-450 models, and plugs into the CPU’s memory cartridge slot to preserve ladder logic without a battery. It is an EEPROM-based cartridge, offering battery-free program retention and electrical memory clear as described in the DL405 documentation. The package contents list the D4-EE-2 cartridge itself, with a 15.5K maximum program storage capacity for DL405 configurations. AutomationDirect currently classifies the D4-EE-2 as retired/discontinued, with no direct replacement listed, reflecting obsolescence of this EEPROM cartridge within the DirectLOGIC DL405 family. For proper use, this cartridge is intended exclusively for DL405 CPUs (D4-440 or D4-450) in accordance with the official cut sheet and DL405 user manuals.