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Small green circuit board with a black Hall sensor component and gold edge connector

DELL

DELL Latitude 7420 HALL Sensor Board 2F7GJ

SKU CH-SSW5-ZT4FF

Hall sensor board for Dell Latitude 7320 and 7420 display assembly, part number 2F7GJ

  • ProcessorLaptop-computer-replacement-parts
  • Genuine Dell OEM part ensures exact fit
  • Hall switch sensor enables display lid detection
  • Compatible with Latitude 7320 and 7420 models
  • Part number 2F7GJ matches factory specifications
  • Alternate numbers GDC50 and LS-K37AP provide cross-reference

Genuine Dell Hall sensor board 2F7GJ

This is a genuine Dell OEM Hall switch sensor circuit board for the Latitude 7320 and 7420 laptops. It sits inside the display assembly and detects the lid position to control sleep and wake functions. Buyers repairing a faulty lid sensor on these models will receive the exact part pictured.

Compatibility limited to Latitude 7320 and 7420

The board carries Dell part number 2F7GJ with alternate numbers GDC50 and LS-K37AP. It fits only the Latitude 7320 and Latitude 7420; any other laptop model will not accept this part.

Passive sensor draws negligible power

The Hall switch operates without a fan or active cooling and adds no audible noise. Its power draw is minimal and has no measurable impact on battery life during normal use.

How it compares

Measured against everything we stock in Sensors, Transducers & Thermometers, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 99% of the 255 comparable items (median $39.99).

Specifications

Product
Brand nameDELL
Processor
ProcessorLaptop-computer-replacement-parts

Questions about this item

What does the Hall sensor board actually do once it is installed in a Latitude 7420?

The board detects the magnetic field from the lid magnet and signals the system to turn the display on or off when the laptop is opened or closed.

Which connector standard does the 2F7GJ board use to link with the Latitude 7320 or 7420 mainboard?

The board plugs directly into the display-cable connector on the screen assembly; no separate interface standard is exposed to the user.

What physical space and mounting points does the Hall sensor board need inside the display assembly?

It fits the original cut-out in the Latitude 7320 and 7420 lid and secures with the existing screw holes shown in the product photos.

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