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Flat flexible cable with small rectangular button board attached

DELL

DELL Power Button Board Cable Inspiron 3421 3437 5421 5437 Latitude 3440

SKU CH-2W73-0CP8Y

Genuine Dell power button board cable for Inspiron 14 and Latitude 3440 models

  • Genuine Dell replacement restores power-button function on supported laptops
  • Direct fit for Inspiron 14 3421, 3437 and 14R 5421, 5437 models
  • Also compatible with Latitude 3440 systems for straightforward repairs
  • OEM part numbers DNE40 PWR 50.4XP07.021 and MGE-DNE40-PWR confirm exact match
  • New condition ensures reliable operation straight from the package

Compatible Dell Models

This power button board cable fits Dell Inspiron 14 3421, Inspiron 14R 5421, Inspiron 14R 5437, Inspiron 14 3437 and Latitude 3440 laptops. It restores the front-panel power switch function on these specific chassis.

Verify Your Part Number

Confirm the existing cable carries markings DNE40 PWR 50.4XP07.021 or MGE-DNE40-PWR before ordering. Connector orientation and length differ across similar-looking Dell 14-inch series, so a visual match is essential.

OEM Build Quality

The genuine Dell assembly uses the original connector keying and cable routing for a secure fit inside the palm-rest area. No adapters or soldering are required; the part seats directly into the motherboard header and power-button module.

How it compares

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

Price $11.99
Cheaper than about 63% of the 8,808 comparable items (median $16.99).

Specifications

Product
Brand nameDell

Questions about this item

What comes in the box and is any extra hardware needed for installation?

The package contains the power button board cable with part numbers DNE40 PWR 50.4XP07.021 and MGE-DNE40-PWR. No additional hardware is required.

Which Dell laptop models does this cable fit?

It fits Inspiron 14 3421, Inspiron 14R 5421, Inspiron 14R 5437, Inspiron 14 3437 and Latitude 3440.

What does the part number 50.4XP07.021 tell me about compatibility?

That number is the Dell OEM identifier for the power button board cable used across the listed Inspiron and Latitude models.

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