| Product name | Model name | Overview |
| 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 |
| Memory backup battery for FX5U, FX5UC, FX3G, FX3U, FX3GC, FX3UC | FX3U-32BL | Memory backup battery for FX5U, FX5UC, FX3G, FX3U, FX3GC, FX3UC |
| Terminal block | FX-16E-TB | Input or output: 16 points (for connector→terminal block conversion) |
|   | FX-32E-TB | Input or output: 32 points (for connector→terminal block convert) |
|   | FX-16EYR-TB | Relay output: 16 points |
|   | FX-16EYT-TB | Transistor output: 16 points |
|   | FX-16EYS-TB | Triac output: 16 points |