We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small rectangular circuit-board connector with alignment pins and ribbon-cable socket, matte green finish

DELL

DELL Alienware m15 R3 R4 Board-to-Board Connector 4YPP4

SKU CH-KRSK-9C7KY

Genuine Dell OEM board-to-board connector linking the right-side SD card and dual USB daughter board to the motherboard on Alienware m15 R3 and R4 laptops

  • Genuine Dell OEM part ensures exact fit for Alienware m15 R3 and R4
  • Restores SD card and dual USB port connectivity to motherboard
  • Polarity-sensitive design with alignment pins prevents incorrect installation damage
  • Purpose-built for right-side I/O daughter board replacement
  • New condition guarantees reliable performance for laptop repair

Genuine Dell OEM connector

This genuine Dell OEM board-to-board connector links the right-side I/O daughter board to the motherboard in compatible Alienware laptops. It carries the SD card reader and dual USB ports signals. The part is polarity sensitive and uses alignment pins for correct installation. It is a new, original component for hardware repair or maintenance.

Replaces damaged or worn flex

This connector replaces a faulty or physically damaged board-to-board cable that causes the right-side SD card reader or USB ports to stop working. The jump is worth it when diagnostics confirm an open circuit, bent pins or intermittent connectivity on the original ribbon. It restores the I/O functions without replacing the entire daughter board or motherboard.

Fits Alienware m15 R3 and R4

The connector fits Alienware m15 R3 and m15 R4 models using part number 4YPP4. It requires careful alignment of the polarity pins during reassembly to avoid shorting the I/O circuitry. The repair frees up the right-side ports for external storage and peripherals once the connection is restored. No other tools or adapters are included.

How it compares

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

Price $15.99
Typical for this category: the median of 8,808 items is $16.99.

Specifications

Product
Brand nameDell

Questions about this item

Will this board-to-board connector fit the right-side IO daughter board on my Alienware m15 R3?

Yes, this genuine Dell OEM part (4YPP4) is made for the Alienware m15 R3 and m15 R4, connecting the SD card and dual USB ports daughter board to the motherboard.

The notes mention alignment pins — how do I use them when installing this connector?

The connector is polarity sensitive; match the alignment pins on the connector to the corresponding holes on the daughter board and motherboard header before pressing it fully into place.

If the SD card or USB ports stop working later, would replacing this connector fix the issue?

This connector carries the signals for the right-side SD card and dual USB ports, so a damaged or loose connector can cause those ports to fail; replacing it restores the link to the motherboard.

More in Cable Locks & Laptop Extras

Similar items