| Part Number | Description |
| 8527430 | PCB "UP" BACKPLANE 64A MODULAR FO3X/FO4X/FO5X |
| 8528550 | PCB POWER UP/ADD'L 32 AMP UPGRADE FM20/FO20A/22/ |
| 8528760 | PCB POWER UPH/MICROFIN II OPTION for FM20/FM20A |
| 8529030 | PCB IF ROTARY TOOL CHANGER FO30-F031-FO35 |
| 911076 | RAIL/SLIDE PLASTIC UP & UPH PCB'S |
