| Main base |
| Q33B | 3 slots, 1 power supply module required, for Q Series modules |
| Q35B | 5 slots, 1 power supply module required, for Q Series modules |
| Q38B | 8 slots, 1 power supply module required, for Q Series modules |
| Q312B | 12 slots, 1 power supply module required, for Q Series modules |
| Q35DB | 5 slots, power supply module required, for Q Series modules |
| Multiple CPU high speed main base |
| Q38DB | 8 slots, 1 power supply module required, for Q Series modules |
| Q312DB | 12 slots, 1 power supply module required, for Q Series modules |
| Slim type main base |
| Q33SB | 3 slots, 1 slim type power supply module required, for Q Series modules |
| Q32SB | 2 slots, 1 slim type power supply module required, for Q Series modules |
| Q35SB | 5 slots, 1 slim type power supply module required, for Q Series modules |
| Redundant power main base |
| Q38RB | 8 slots, 2 redundant power supply modules required, for Q Series modules |
| Extension base |
| Q63B | 3 slots, 1 power supply module required, for Q Series modules |
| Q65B | 5 slots, 1 power supply module required, for Q Series modules |
| Q68B | 8 slots, 1 power supply module required, for Q Series modules |
| Q612B | 12 slots, 1 power supply module required, for Q Series modules |
| Q52B | 2 slots, power supply module not required, for Q Series modules |
| Q55B | 5 slots, power supply module not required, for Q Series modules |
| Redundant power extension base |
| Q68RB | 8 slots, 2 redundant power supply modules required, for Q Series modules |
| Extension cable | |
| QC05B | 0.45 m cable for connecting extension base unit |
| QC06B | 0.6 m cable for connecting extension base unit |
| QC12B | 1.2 m cable for connecting extension base unit |
| QC30B | 3 m cable for connecting extension base unit |
| QC50B | 5 m cable for connecting extension base unit |
| QC100B | 10 m cable for connecting extension base unit |
| DIN rail mounting adapter |
| Q6DIN1 | DIN rail mounting adapter for Q38B, Q312B, Q68B, Q612B, Q38RB, Q68RB, Q38DB, and Q312DB |
| Q6DIN2 | DIN rail mounting adapter for Q35B, Q65B, and Q00UJCPU |
| Q6DIN3 | DIN rail mounting adapter for Q32SB, Q33SB, Q35SB, Q33B, Q52B, Q55B, and Q63B |
| Q6DIN1A | DIN rail mounting adapter (with vibration-proofing bracket set) for Q3□B, Q5□B, Q6□B, Q38RB, Q68RB |
| Blank cover |
| QG60 | Blank cover for I/O slot |
