| Extended SRAM cassette | Q4MCA-1MBS | Extended SRAM cassette, program memory capacity: 1M bytes |
| | Q4MCA-2MBS | Extended SRAM cassette, program memory capacity: 2M bytes |
| | Q4MCA-4MBS | Extended SRAM cassette, program memory capacity: 4M bytes |
| | Q4MCA-8MBS | Extended SRAM cassette, program memory capacity: 8M bytes |
| SD memory card | NZ1MEM-2GBSD | SD memory card, program memory capacity: 2G bytes |
| | NZ1MEM-4GBSD | SDHC memory card, program memory capacity: 4G bytes |
| | NZ1MEM-8GBSD | SDHC memory card, program memory capacity: 8G bytes |
| | NZ1MEM-16GBSD | SDHC memory card, program memory capacity: 16G bytes |
| Battery | Q6BAT | Replacement battery |
| Large capacity battery | Q7BAT-SET | Large capacity battery with battery holder |
| | Q7BAT | Large capacity replacement battery |
| Large capacity battery module | Q8BAT-SET | Large capacity battery module with a cable for connecting a CPU |
| | Q8BAT | Large capacity replacement battery module |
