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Flat beige ribbon cable with multiple connectors on a light background

DELL

DELL Latitude 7280 7380 7290 7390 Palmrest USH Ribbon Cable 5XG64

SKU CH-AS9A-MQC71

Genuine Dell OEM ribbon cable connecting the palmrest USH junction board to the motherboard for Latitude 7280, 7380, 7290 and 7390 laptops

  • Genuine Dell OEM part ensures exact fit for Latitude 7280 7380 7290 7390
  • Connects palmrest junction board to motherboard restoring full USH functionality
  • Part number 5XG64 matches service documentation for correct replacement
  • New condition guarantees reliable connection without wear from prior use
  • Alternate references CAZ10 and NBX00022Z00 confirm cross-compatibility across listed models

Genuine Dell Palmrest Junction Board Ribbon Cable

This genuine Dell OEM ribbon cable connects the palmrest junction board to the motherboard on compatible Latitude laptops. It is designed for technicians or owners repairing a damaged or faulty flex connection. The part restores the link between the palmrest assembly and the main board. It fits Latitude 7280, 7380, 7290 and 7390 models.

Thin Flex Cable Routing Constraints

The ribbon is a thin flexible circuit that must follow the original chassis path inside the laptop. Sharp bends or pinching during reassembly can sever conductors and cause intermittent faults. Installers must keep the cable flat and avoid stretching it beyond its natural length. No alternative routing is possible within the existing hinge and frame design.

OEM Build Quality and Connector Fit

Genuine Dell construction matches the original factory specification for connector pitch and retention force. The ends seat directly into the motherboard and palmrest board sockets without adapters. Correct alignment prevents damage to the delicate ZIF or board-to-board contacts. This part is not intended for models outside the listed Latitude series.

Highlights

  • Genuine Dell OEM part ensures exact fit for Latitude 7280 7380 7290 7390
  • Connects palmrest junction board to motherboard restoring full USH functionality
  • Part number 5XG64 matches service documentation for correct replacement
  • New condition guarantees reliable connection without wear from prior use
  • Alternate references CAZ10 and NBX00022Z00 confirm cross-compatibility across listed models

Specifications

BrandDell

Questions about this item

Which Dell Latitude models does the 5XG64 palmrest USH ribbon cable fit?

The cable is compatible with Latitude 7280, 7380, 7290 and 7390 notebooks.

What function does the 5XG64 ribbon cable perform once installed?

It connects the palmrest junction board to the motherboard, carrying the USH fingerprint reader signals.

What interface standard does the 5XG64 cable use and what does it carry?

It uses a proprietary flat-flex ribbon interface that carries the USH biometric data between the palmrest board and the motherboard.

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