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Green rectangular circuit board with USB port and SD card slot

DELL

DELL G Series G3 3579 USB SD Card Reader IO Circuit Board J5NYF

SKU CH-D528-YZC9M

Replacement IO circuit board with USB port, CMOS battery cradle and SD card reader slot for Dell G3 3579 laptops

  • Genuine Dell replacement part for G3 3579
  • Restores USB and SD card connectivity on your laptop
  • Includes CMOS battery cradle for system clock power
  • OEM J5NYF board matches original factory specifications
  • Direct fit for G Series G3 3579 models

Dell G3 3579 IO Board Replacement

This genuine Dell IO circuit board restores one USB port, the CMOS battery cradle, and an SD card reader slot on a G Series G3 3579 laptop. It is the correct part for owners whose original board has failed or been damaged. The component arrives new and ready for installation by a qualified technician.

Sustained Data Transfer Stability

The SD card reader and USB port maintain consistent performance during extended file transfers because the board connects directly to the laptop's internal bus. No thermal throttling or protocol overhead from external adapters is introduced. Reliability depends on the host system's power delivery and driver health remaining within normal operating limits.

Verify Laptop Model And Connector Layout

Confirm the service tag matches G Series G3 3579 before ordering, as this board is not interchangeable with other Dell chassis. Check that the existing board's part number aligns with J5NYF, CAL53, or LS-F612P to ensure the mounting points and flex-cable connectors line up correctly.

How it compares

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

Price $7.99
Cheaper than about 90% of the 511 comparable items (median $18.99).

Specifications

Product
Brand nameDELL

Questions about this item

How much power does the SD card reader on this J5NYF board draw when it runs all day?

The reader is powered through the laptop USB bus, so it draws only the standard 5 V supply current allowed by the port and adds no separate heat load.

Which laptop model must I already own for this J5NYF board to fit and work?

It is a direct replacement for the Dell G Series G3 3579 and will not install in any other chassis.

Will the USB port on this board still work with the older USB 2.0 peripherals I keep?

Yes, the port is backward compatible with USB 2.0 devices, so existing mice, keyboards or drives continue to function.

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