OMRON EEPROM Memory Cassette C200H-ME431
Model: C200H-ME431.
Description: EEPROM, 4K words, no clock.

OMRON EEPROM Memory Cassette C200H-ME831
Model: C200H-ME831.
Description: EEPROM, 8K words, no clock.

OMRON EEPROM Memory Cassette C200H-ME432
Model: C200H-ME432.
Description: EEPROM, 4K words, battery back-up.with clock(CPU21, CPU23 only).

OMRON EEPROM Memory Cassette C200H-ME832
Model: C200H-ME832.
Description: EEPROM, 8K words, battery back-up.with clock(CPU21, CPU23 only).