Model: C200H-MR431.
Description: RAM, 4 K words, battery back-up. OMRON RAM Memory Cassette no clock.
Model: C200H-MR831.
Description: RAM, 8K words, battery back-up. no clock.
Model: OMRON RAM Memory Cassette
C200H-MR432.
Description: OMRON RAM Memory Cassette RAM, 4K words, capacitor back-up.no OMRON C200H-MR433 clock.
Model: C200H-MR833.
Description: RAM, 8K words, battery OMRON CC200H-MR433 OMRON RAM Memory Cassette back-up.with clock(CPU21, CPU23 only).
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