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Small green circuit board with power button and ribbon cable

DELL

DELL Latitude E6400 Power Button Board D459C for Palmrest TN281

SKU CH-1VK0-2XVRH

Replacement power button board with Wi-Fi catcher switch and ribbon cable for Dell Latitude E6400 palmrest TN281

  • Genuine Dell OEM replacement part
  • Power button and WiFi catcher switch integrated
  • Includes ribbon cable for direct installation
  • Tested and guaranteed working condition
  • Compatible only with Latitude E6400 palmrest TN281

Dell Latitude E6400 Power Button Board D459C

This replacement circuit board restores the on/off switch and WiFi catcher function on a Dell Latitude E6400 laptop. It is designed for owners whose original board has failed or been damaged during service. The part includes the ribbon cable and mounts directly to the Touchpad Palmrest Assembly. Buyers who need a different palmrest variant should verify compatibility before purchasing.

Palmrest TN281 Compatibility

This board (part number D459C) works only with palmrest assembly part number TN281. The Latitude E6400 uses two different power-button boards keyed to the two palmrest versions; installing the wrong board will not fit the connector or mounting points. Match the TN281 marking on your existing palmrest to confirm the jump is worth it. Builders working on the alternate palmrest version cannot use this component.

Pre-Installation Checks

Remove the palmrest and locate the printed part number on the assembly; it must read TN281 exactly. Inspect the ribbon-cable connector on the motherboard for bent pins or debris before seating the new board. Ensure the WiFi catcher switch actuator aligns with the chassis cut-out when the palmrest is refitted. No other laptop model or palmrest revision is supported by this part.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 93% of the 8,808 comparable items (median $16.99).

Specifications

Product
Brand nameDell

Questions about this item

Will this power button board fit a Latitude E6400 palmrest with part number TN281?

Yes, the D459C board is designed specifically for the E6400 palmrest assembly carrying part number TN281 and will not fit the alternative palmrest used on the same model.

How is the board installed and what step is often missed?

The board mounts inside the palmrest assembly and connects via its included ribbon cable; the step often missed is verifying the palmrest part number is TN281 before opening the chassis.

What maintenance or replacement should be expected for the ribbon cable?

The ribbon cable is integrated with the board; if the cable becomes damaged or the switches fail, the entire D459C assembly is replaced as a single unit.

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