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Small green circuit board with USB port and SD card slot

DELL

DELL Inspiron 3481 Vostro 3481 USB SD Card Reader IO Board 39M5P

SKU CH-Z5K4-EVT7Y

Replacement IO board with USB port and SD card reader for Inspiron 3481 and Vostro 3481 laptops

  • ProcessorLaptop-computer-replacement-parts
  • Genuine Dell OEM part ensures exact fit for Inspiron 3481 and Vostro 3481
  • Adds one USB port and SD card reader slot to restore connectivity
  • Includes CMOS battery connector for reliable system time keeping
  • Direct replacement IO board with part number 39M5P matches original specification
  • Compatible alternate part numbers EDI56 and LS-G716P confirm correct fit

Genuine Dell OEM IO Board

This is a genuine Dell OEM IO circuit board for Inspiron 3481 and Vostro 3481 laptops. It integrates one USB port, a CMOS battery connector and an SD card reader slot. The part replaces the factory daughterboard and restores those connections. It is supplied new and matches the component shown in the product images.

Build and daily connectivity

The board mounts inside the laptop chassis and provides the external USB and SD interfaces used for peripherals and memory cards. Its connectors align with the original cut-outs, so the ports sit flush once the board is seated and secured. Because it carries the CMOS battery header, the system clock and BIOS settings are maintained when the main battery is removed.

Compatibility checklist

Confirm your laptop model is either Inspiron 3481 or Vostro 3481 before ordering. Verify the existing board carries the same DPN 39M5P or one of the alternate part numbers listed. Ensure you are comfortable disassembling the laptop to reach the IO board and reconnecting the flexible flat cable. Buyers needing a different port layout or additional interfaces should look elsewhere.

How it compares

Measured against everything we stock in USB & Internal Card Readers, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 75% of the 511 comparable items (median $18.99).

Specifications

Product
Brand nameDELL
Processor
ProcessorLaptop-computer-replacement-parts

Questions about this item

Does the USB port on the 39M5P board use the standard USB 2.0 interface?

The board provides one USB port that follows the USB 2.0 specification used in the Inspiron 3481 and Vostro 3481 chassis.

What physical space does the 39M5P IO board occupy inside the laptop?

It fits the dedicated daughterboard cavity on the right-hand side of the Inspiron 3481 and Vostro 3481, secured by two screw posts and a single FFC connector.

Which connector must be seated first when installing the 39M5P board to avoid a no-boot condition?

Insert the flat-flex cable into the motherboard header before lowering the board onto its screw posts; reversing the order bends the cable and breaks the SD reader circuit.

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