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Flat ribbon cable with connectors at each end, Dell part 3F2F4

DELL

DELL Inspiron 15 5568 USB IO Board Cable 3F2F4

SKU CH-KHVY-7ZWK6

Connects the USB/SD reader board to the motherboard on Dell Inspiron 15 5568, 5578, 7569 and 7579 2-in-1 laptops

  • Genuine Dell OEM part ensures exact fit for Inspiron 15 5568
  • Restores USB and SD reader connectivity on supported 2-in-1 models
  • Compatible with Inspiron 5578, 7569 and 7579 part number 3F2F4
  • New condition cable replaces damaged or missing internal IO board link
  • Dell part 3F2F4 matches Winstron Starlord 15 IO cable specification

Dell Inspiron USB IO Board Cable 3F2F4

This replacement cable connects the USB and SD card reader board to the motherboard inside Dell Inspiron 15 5568, 5578, 7569 and 7579 2-in-1 laptops. It restores data and power links when the original ribbon is damaged or missing during a repair. Technicians and owners servicing these specific models use it to bring front-panel ports back to working order.

Flexible ribbon with board-to-board connectors

The flat cable terminates in precision connectors that slot directly into the IO board and the mainboard without soldering. Its routing follows the factory path along the hinge area, so reassembly fits the chassis clips and avoids pinching when the display is folded. The flexible construction tolerates repeated open-close cycles once correctly seated.

Verify exact model number and board layout

Before ordering, confirm the laptop service tag matches Inspiron 15 5568, 5578, 7569 or 7579 and that the IO board uses the Dell 3F2F4 part number. Different revisions or regions may route the cable differently, so compare the connector shape and pin count against the existing part. This cable does not support other Dell series or standalone USB boards.

How it compares

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

Price $7.99
Cheaper than about 80% of the 8,808 comparable items (median $16.99).

Specifications

Product
Brand nameDell

Questions about this item

Which Dell Inspiron 15 models use the 3F2F4 USB IO board cable?

The 3F2F4 cable fits the Inspiron 15 5568, 5578, 7569 and 7579 2-in-1 laptops.

What physical space is required to install this cable inside the chassis?

The cable routes between the USB/SD reader board and the motherboard within the existing laptop chassis.

How is the 3F2F4 cable installed, and which step is often missed?

Disconnect the battery, remove the bottom cover, unplug the old cable from the IO board and motherboard, then connect the new cable to both ends.

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