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Green circuit board with silver audio jacks, two USB ports and a card reader slot

DELL

DELL Precision M6400 Left IO Circuit Board W215F

SKU CH-RMMM-S2861

Replacement left-side I/O board with audio jacks, two USB ports and a media card reader for the Precision M6400

  • ProcessorUSB Audio SD Card Reader Board
  • Genuine Dell replacement part ensures exact fit
  • Left-side I/O board restores audio, USB and card-reader functions
  • Two USB ports and media card reader included
  • Designed for Precision M6400 motherboard connection
  • OEM board with part number W215F for direct compatibility

Genuine Dell Precision M6400 Left IO Board

This genuine Dell replacement board restores the left-side connectivity on a Precision M6400 laptop. It integrates audio jacks, two USB ports and a media card reader into a single circuit assembly. The part carries Dell part number W215F and is supplied as a working pull in like-new condition.

Practical limits of the left-side IO assembly

The board provides only the ports physically present on the left edge of the chassis; it cannot add interfaces the motherboard does not already support. Bandwidth and power delivery for the two USB ports are defined by the host controller on the mainboard, not by this daughter board. The media card reader supports the formats the original M6400 platform was designed to accept.

Replaces a damaged or worn original IO board

Swapping this board is the direct fix when audio jacks fail, USB ports stop enumerating devices or the card reader no longer detects media. The upgrade is worth it when the rest of the M6400 remains functional and a full motherboard change is unnecessary. Installation requires disassembly of the laptop chassis to access the left-side connector.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 99% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameDELL
Processor
ProcessorUSB Audio SD Card Reader Board

Questions about this item

Should I choose the W215F board or a different part number for my Precision M6400?

The W215F is the Dell part number for the left-side I/O board that fits the Precision M6400; match that number to the label on your original board to confirm it is the correct replacement.

What does the 6400 designation mean once the board is installed in the laptop?

The 6400 identifies the Precision M6400 model family; this board restores the left-side audio jacks, two USB ports and the media card reader on that specific chassis.

Which interface does the board use to connect to the M6400 motherboard and what does that limit?

The board connects through a dedicated internal ribbon connector on the Precision M6400 motherboard, so it only works in that model and cannot be adapted to other laptops.

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