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Two short black sleeved cables each splitting one 4-pin connector into two 4-pin connectors

Cable Matters 104040 4-Pin PWM Fan Splitter 2-Pack 4 Inches

SKU CH-AV4S-76VV4

A 2-pack of 4-inch PWM Y-cables that split one motherboard header into two fan connections for synchronized speed control

  • TypeUSB 3.0
  • ColorBlack
  • Length< 1"
  • Cable Length32.8 ft.
  • Specifications104040x2, 4-Pin, Black, 0.02 pounds, Cable Matters
  • Sports Team2 Piece
  • Connect two PWM fans to one motherboard header for expanded cooling
  • 4-pin PWM signal split lets both fans run at identical speeds
  • Master fan RPM reported back to motherboard for synchronized control
  • Black-sleeved 4-inch Y cables keep the build tidy in open cases
  • Works with 3-pin and 4-pin fans from Corsair, Cooler Master, Noctua and Thermaltake

Dual 4-Pin PWM Fan Splitter 2-Pack

This 2-pack of Y cables connects two case fans to a single motherboard 4-pin header. Each splitter transmits the PWM signal to both fans so they spin at identical speeds under motherboard software control. The 4-inch black-sleeved cables suit compact builds and open cases.

Synchronised PWM Control and Low-Profile Routing

A master connector passes the RPM signal back to the motherboard while the slave connector omits that pin for tandem operation. Both 3-pin and 4-pin fans are supported, allowing mixed fan types on one header. The short 4-inch length keeps cable runs tidy without excess slack.

Two Splitters for Up to Four Fans Total

The pack provides two independent 1-to-2 splitters, enabling up to four fans from two motherboard headers. Builders needing more than four fans or longer cable runs will need additional splitters or a powered fan hub.

Highlights

  • Connect two PWM fans to one motherboard header for expanded cooling
  • 4-pin PWM signal split lets both fans run at identical speeds
  • Master fan RPM reported back to motherboard for synchronized control
  • Black-sleeved 4-inch Y cables keep the build tidy in open cases
  • Works with 3-pin and 4-pin fans from Corsair, Cooler Master, Noctua and Thermaltake

Specifications

BrandApple
Model104040x2
TypeUSB 3.0
ColorBlack
Length< 1"
Cable Length32.8 ft.
Specifications104040x2, 4-Pin, Black, 0.02 pounds, Cable Matters
Sports Team2 Piece
Terminal GenderMale to Female
ConductorCopper Conductor
Refresh Rate4 inches
Features4-Pin, Black, Cable Matters, 104040x2
Disclaimeron_product_combined_cancer_reproductive, RoHS

Questions about this item

How do I connect the 4-inch 4-pin PWM splitter to my motherboard header so both fans report speed correctly?

Plug the male 4-pin connector into the motherboard PWM header, attach the primary fan to the female connector that carries the RPM wire, and connect the second fan to the other female connector; the slave leg omits the RPM pin so the board reads one speed signal for both fans.

What upkeep will the black-sleeved copper-conductor splitter need after installation?

No scheduled maintenance is required; simply inspect the sleeved jacket and copper conductors during routine case cleaning and reseat the connectors if any become loose.

At what point does the 4-inch length become a limiting factor in a sustained-build scenario?

The 4-inch reach restricts placement to fans mounted close to the motherboard header; in larger cases or dual-radiator layouts the cable may not span the distance without adding an extension.

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