| Main base | Q33B | 3 slots, 1 power supply module required, for Q Series modules |
| Main base | Q35B | 5 slots, 1 power supply module required, for Q Series modules |
| Main base | Q38B | 8 slots, 1 power supply module required, for Q Series modules |
| Main base | Q312B | 12 slots, 1 power supply module required, for Q Series modules |
| Multiple CPU High speed Main base | Q35DB | 5 slots, 1 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 |
| Multiple CPU High speed Main base | Q312DB | 12 slots, 1 power supply module required, for Q Series modules |
| Slim type Main base | Q32SB | 2 slots, 1 slim type 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 |
| Slim type Main base | Q35SB | 5 slots, 1 slim type power supply module required, for Q Series modules |
| Redundant main | Q38RB | 8 slots, 2 redundant power supply module required, for Q Series modules |
| Extension base | Q63B | 3 slots, 1 power supply module required, for Q Series modules |
| Extension base | Q65B | 5 slots, 1 power supply module required, for Q Series modules |
| Extension base | Q68B | 8 slots, 1 power supply module required, for Q Series modules |
| Extension base | Q612B | 12 slots, 1 power supply module required, for Q Series modules |
| Extension base | Q52B | 2 slots, power supply module not required, for Q Series modules |
| Extension base | Q55B | 5 slots, power supply module not required, for Q Series modules |
| Redundant Extension | Q68RB | 8 slots, 2 redundant power supply module required, for Q Series modules |
| Redundant Extension | Q65WRB | 5 slots, 2 redundant power supply module required, for Q Series modules |
| Extension cable | QC05B | 0.45 m cable for connecting extension base unit |
| Extension cable | QC06B | 0.6 m cable for connecting extension base unit |
| Extension cable | QC12B | 1.2 m cable for connecting extension base unit |
| Extension cable | QC30B | 3 m cable for connecting extension base unit |
| Extension cable | QC50B | 5 m cable for connecting extension base unit |
| Extension cable | QC100B | 10 m cable for connecting extension base unit |
| DIN rail mounting Adapter | Q6DIN1 | Use for Q33B,Q312B,Q68B,Q612B,Q38RB,Q68RB,Q65WRB,Q38DB,Q312DB |
| DIN rail mounting Adapter | Q6DIN2 | Use for Q35B,Q65B,Q00JCPU,Q00UJCPU |
| DIN rail mounting Adapter | Q6DIN3 | Use for Q32SB,Q33SB,Q35SB,Q33B,Q25B,Q55B,Q63B |
| DIN rail mounting Adapter | Q6DIN1A | With vibration-proofing bracket set |
| Blank cover | QG60 | Blank cover for I/O slot |