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Flat orange ribbon cable with connectors at each end, new condition

DELL

DELL Latitude 5421 Palmrest USH Junction Board Ribbon Cable JFD27

SKU CH-Y4NA-SE651

Genuine Dell OEM ribbon cable connects the palmrest USH junction board to the motherboard in compatible Latitude and Precision laptops

  • Genuine Dell OEM part ensures exact fit for Latitude 5421
  • Connects palmrest USH junction board to motherboard for secure functionality
  • Compatible with Latitude 5421, 5431 and Precision 3470 models
  • Part number JFD27 matches Dell service documentation precisely
  • New condition guarantees reliable performance from installation

Genuine Dell OEM Palmrest Ribbon Cable

This genuine Dell OEM ribbon cable connects the palmrest USH junction board to the motherboard in compatible Dell laptops. It is built for technicians and owners repairing a Latitude 5421, Latitude 5431, or Precision 3470. The part arrives new and matches the component shown in the product images. ||

Dell Part Number JFD27 Compatibility

The decisive specification is the Dell part number JFD27, which also cross-references to GDA40_USH_BOARD_FFC and NBX0002SZ00. This cable fits only the three listed models, so verify the exact part number on the existing cable before ordering. Buyers needing a different junction-board interconnect or a cable for another Dell series will not be served by this part. ||

Simple Flex-Cable Replacement

Installation requires opening the chassis, disconnecting the old flex cable from the palmrest board and motherboard ZIF connectors, and seating the new cable with the contacts aligned. The ribbon is fragile; creasing or mis-insertion causes intermittent USH or fingerprint-reader faults. Work on an anti-static surface and avoid excessive force when locking the connector tabs.

Highlights

  • Genuine Dell OEM part ensures exact fit for Latitude 5421
  • Connects palmrest USH junction board to motherboard for secure functionality
  • Compatible with Latitude 5421, 5431 and Precision 3470 models
  • Part number JFD27 matches Dell service documentation precisely
  • New condition guarantees reliable performance from installation

Specifications

BrandDell

Questions about this item

What does the JFD27 part number mean for my Latitude 5421?

The JFD27 part number identifies this as the exact ribbon cable that links the palmrest junction board to the motherboard on the Latitude 5421.

Which connector standard does this ribbon cable use?

It uses the proprietary Dell flex-flat cable interface designed for the palmrest USH junction board on the Latitude 5421, Precision 3470 and Latitude 5431.

What physical space does this cable need inside the laptop?

The cable routes between the palmrest-mounted junction board and the motherboard, fitting the existing channel in the Latitude 5421 chassis.

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