Highlight:
                                                                                                                                                                                                                                                            Siemens Sinumerik 840D CNC motherboard, Siemens 810D NCU control board, CNC PCU control motherboard
                      

System Compatibility:	Sinumerik 810D / 840D / 840Di	Processor Class:	Intel Core / Pent-M Compatible
Testing Process:	Boot Sequence & DP Interface Check	Origin:	Made In Germany / EU
Hardware Condition:	New Surplus / Grade-A Refurbished	Axis Control Capacity::	Up To 31 Axes (Depending On NCU)
Memory Capacity:	Matching Original Siemens Spec	Shipping Term:	International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/Sea Freight / Air Freight / International Special Line
Freight Charge:	For Industrial Equipment (E.G., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/Volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote

System Compatibility:	Sinumerik 810D / 840D / 840Di
Processor Class:	Intel Core / Pent-M Compatible
Testing Process:	Boot Sequence & DP Interface Check
Origin:	Made In Germany / EU
Hardware Condition:	New Surplus / Grade-A Refurbished
Axis Control Capacity::	Up To 31 Axes (Depending On NCU)
Memory Capacity:	Matching Original Siemens Spec
Shipping Term:	International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/Sea Freight / Air Freight / International Special Line
Freight Charge:	For Industrial Equipment (E.G., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/Volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote

Original Siemens Sinumerik 840D 810D CNC NCU PCU Control Motherboard

Optimize your machine tool performance with genuine Siemens Sinumerik 6FC series core boards. These NCU and PCU replacements manage multi-axis interpolation and HMI data for 810D and 840D systems.

Product Highlights

CNC Precision: Maintains original trajectory standards.
Diagnostic Tested: High-speed memory and bus verified.
Retrofit Ready: Ideal for Powerline & Solution Line maintenance.
Expert Support: Part number cross-referencing provided.

Selection Table

Part Number	Description	System Fit
6FC5357-0BB11-0AE1	NCU 571.2 Controller	840D
6FC5357-0BB33-0AE2	NCU 573.3 CPU	840D
6FC5210-0DF22-2AA0	PCU 50.3 Motherboard	810D/840D
6FC5211-0AA00-0AA0	MMC 103 Logic Card	legacy 810D
6FC5247-0AA00-0AA3	System Memory Card	NCU Units