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Small green rectangular circuit board with gold connectors and surface-mounted chips

DELL

Dell Precision 7670 USH Junction Circuit Board CPCJX

SKU CH-8892-4HNVT

Genuine Dell OEM junction board connects fingerprint, RFID and smart-card modules to the motherboard in Precision 7670 and 7770 laptops

  • CPU Typelaptop-computer-replacement-parts
  • Genuine Dell OEM part ensures exact fit and function
  • Connects fingerprint reader, RFID and Smart Card modules to the motherboard
  • Mounts on the underside of the Touchpad Palmrest assembly
  • Compatible with Precision 7670 and Precision 7770 laptops
  • Part numbers CPCJX, HDC50 and LS-L88GP for easy identification

Genuine Dell OEM Junction Board

This is a Dell original junction circuit board for the Precision 7670 laptop. It mounts on the underside of the Touchpad Palmrest assembly. The board connects optional accessories like the fingerprint reader, RFID, and Smart Card modules to the motherboard. It is also compatible with the Precision 7770 model.

Thermals Noise and Power Draw

As a passive data circuit board, it has no active cooling components or power draw of its own. It operates silently within the laptop chassis. Thermal characteristics depend entirely on the surrounding system components. No fan or radiator is associated with this part.

Sustained Load Behaviour

Under sustained system load the board simply relays signals between the motherboard and peripheral modules. It contains no processor or memory to throttle. Performance remains consistent as long as the host laptop maintains stable operation. The part carries Dell part numbers CPCJX, HDC50, and LS-L88GP.

Highlights

  • Genuine Dell OEM part ensures exact fit and function
  • Connects fingerprint reader, RFID and Smart Card modules to the motherboard
  • Mounts on the underside of the Touchpad Palmrest assembly
  • Compatible with Precision 7670 and Precision 7770 laptops
  • Part numbers CPCJX, HDC50 and LS-L88GP for easy identification

Specifications

BrandDELL
CPU Typelaptop-computer-replacement-parts

Questions about this item

How is the USH junction board installed in the Precision 7670 palmrest?

The board mounts on the underside of the touchpad palmrest assembly and connects the fingerprint reader, RFID, and smart card modules to the motherboard.

What maintenance or replacement will the CPCJX board need later?

As a passive circuit board it has no serviceable parts; replacement is only needed if physical damage or a connector failure occurs.

What is the first limit that appears under sustained use of the junction board?

The board simply routes signals for the USH modules, so sustained use is limited by the connected fingerprint, RFID, or smart card readers rather than the board itself.

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