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Small green circuit board with connectors and chips

DELL

DELL Latitude 7430 5430 USH Junction Circuit Board Palmrest 292DT

SKU CH-EB7Q-FZEWA

Genuine Dell OEM junction circuit board connecting fingerprint, RFID and smart-card modules to the motherboard in compatible Latitude and Precision laptops

  • ProcessorLaptop-computer-replacement-parts
  • Genuine Dell OEM part ensures exact fit and function
  • Connects fingerprint reader, RFID and Smart Card modules to the motherboard
  • Compatible with Latitude 7330, 7430, 7530, 5430, 5431 and Precision 3470
  • Mounts on underside of Touchpad Palmrest assembly for secure installation
  • Part number 292DT with board markings GDC41 and LS-K378P for identification

Genuine Dell USH Junction Board

This genuine Dell OEM circuit board sits beneath the touchpad palmrest on Latitude 7430, 5430, 7330, 7530, 5431 and Precision 3470 laptops. It carries the USH data path that links optional fingerprint reader, RFID and Smart Card modules to the mainboard. The part number is 292DT with board markings GDC41 and LS-K378P.

Installation notes for repair technicians

Replacing the board requires removing the palmrest assembly and disconnecting the flat-flex cable that routes to the motherboard. The connector is keyed but fragile; forcing it can damage the latch or tear the ribbon. No firmware update or driver install is needed because the board is a passive signal carrier. Technicians should verify the donor laptop model against the compatible list before fitting.

Behaviour under sustained use

The board contains no active silicon or power regulation, so thermal output is negligible and performance does not degrade over time. Signal integrity for the biometric and smart-card interfaces remains stable during continuous authentication cycles. Buyers who need additional I/O ports or a different form-factor should look elsewhere because this part only serves the USH junction function.

How it compares

Measured against everything we stock in Motherboard Add-On Parts, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 99% of the 242 comparable items (median $50.49).

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Specifications

Product
Brand nameDELL
Processor
ProcessorLaptop-computer-replacement-parts

Questions about this item

How can I confirm the USH junction board 292DT is functioning after installation?

Verify that the fingerprint reader, RFID module, and Smart Card reader are all detected in Device Manager and respond normally during use.

What comes in the box with the 292DT junction board and what must be purchased separately?

The package contains the genuine Dell OEM circuit board only; the palmrest assembly, fingerprint sensor, RFID module, and Smart Card reader are sold separately.

Which Dell laptop models is the 292DT board compatible with?

It fits Latitude 7330, 7430, 7530, 5430, 5431 and Precision 3470 systems.

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