| Part Number | Description |
| M55B-635109002 | PCB "OP" CONNECTOR EU HS-50A |
| M55B-654300001 | PCB EXIO OPTION ASSEMBLY HS-50A |
| M55B-659616001 | PCB "IO" ASSEMBLY A10 HS-50A |
| M55B-659652001 | PCB NC ASSEMBLY A10 HS-50A |
| M55B-659654001 | GRAM MODULE ASSEMBLY A10 HS-50A |
| M55B-659671001 | PCB "WD" ASSEMBLY A10 HS-50A |
| M55B-659698001 | PCB "WSLV" ASSEMBLY A10 HS-50A |
| M55B-659704001 | PCB "DC" ASSEMBLY A10 HS-50A |
| M55B-659726001 | SERVO DRIVER ASSEMBLY "X-Y" AXIS HS-50A |
| M55B-659727001 | SERVO DRIVER ASSEMBLY "U-V" AXIS HS-50A |
| M55B-659728001 | SERVO DRIVER ASSEMBLY "Z" AXIS HS-50A |
| M55B-659729001 | SERVO DRIVER ASSEMBLY "B" AXIS UNIT HS-50A |
| M55B-659754001 | VOLTAGE REGULATOR #LCD60F-2-Y AVR#1 HS-50A |
| M55B-659755001 | VOLTAGE REGULATOR #LDA10F-5 AVR #2 HS-50A |
| M55B-659756001 | VOLTAGE REGULATOR #LDA100W-24 AVR#4 HS-50A |
| M55B-659757001 | PCB MEMORY UNIT A10 HS-50A |
| M55B-659758001 | WIRE OP UNIT 50A HS-50A |
| M55B-659762001 | VOLTAGE REGULATOR #LDA300W24T AVR#5 HS-50A |
| M55B-659774001 | FAN CONTROL BOX COOLING #CN55B2 HS-50A |
| M55B-659776001 | SPEED CONTROL UNIT #HC-60A HS-50A |
