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Short multi-coloured cable splitting one large 4-pin Molex into four small 3-pin fan headers

EN-Labs

EN-Labs 6.1" Molex 4-pin to 4× TX3 3-pin fan power adapter 12V/5V 20AWG UL1007

SKU CH-K74G-22QZ4

Connects four 3-pin TX3 fans to one 5.25" Molex 4-pin connector with two 12V and two 5V outputs

  • Cable length6.1 in (15.5 cm)
  • Connector count5
  • Product typeFan power splitter cable
  • Overall length6 in (15.2 cm)
  • Connect four fans from one Molex connector
  • Two fans run at 12 V and two at 5 V for speed reduction
  • 1 in cable keeps routing tidy inside the case
  • 20 AWG UL1007 tinned copper wire handles the current
  • 25 in Molex male plugs directly into standard PSU lead

Six-inch Molex fan splitter

This 6.1-inch adapter splits a single 5.25-inch Molex 4-pin connector into four TX3 3-pin fan headers. Two headers deliver 12 V DC and two deliver 5 V DC for speed reduction. Each fan connector uses only two wires, so no tachometer signal is passed through. The 20 AWG UL1007 tinned-copper cable keeps the run short and tidy.

Builders adding multiple case fans

Suits anyone who needs to power up to four 3-pin fans from one Molex lead and wants two fans running at a lower voltage. Not suited for PWM-controlled fans or any header that requires a tachometer wire for speed monitoring. Buyers needing more than four fan connections or full speed reporting should look at a powered hub or a motherboard splitter with sense wires.

Two voltage levels from one cable

The 5 V headers let two fans spin more quietly while the 12 V headers run at full speed, all without extra software or BIOS setup. Missing tachometer pins mean the system cannot report fan RPM, so fan-failure alerts will not work on those headers. The short 6.1-inch length limits placement to fans clustered near the power supply.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 96% of the 3,875 comparable items (median $23.99).

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Specifications

Product
Product typeFan power splitter cable
Ports & slots
Connector count5
Size & build
Overall length6 in (15.2 cm)
Cable length6.1 in (15.5 cm)

Questions about this item

Do I need a free 5.25" Molex 4-pin LP4 connector on my power supply to use this adapter?

Yes, the adapter plugs into a single 5.25" Molex 4-pin LP4 male connector from the power supply to provide power for up to four fans.

Will my older 3-pin TX3 fans with tachometer wires still report speed when connected to this adapter?

No, each 3-pin TX3 female connector on the adapter uses only two wires and lacks the tachometer pin, so fan speed reporting is not available.

How can I verify the adapter is delivering both 12 V and 5 V to the correct fan headers after installation?

Connect a fan to each header; the two 12 V headers will run the fan at full speed while the two 5 V headers will run it slower, confirming the voltage split is active.

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