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Black 4-pin PWM fan splitter cable with four connectors and snakeskin sleeve 27cm long

Ruth's sister

Ruth's sister Fan Splitter 4pin Adapter Cable 1 to 4 internal power cable 27cm

SKU CH-FWGR-P9RAH

Connects four PWM or 3-pin fans to a single 4-pin motherboard header using a 27 cm snakeskin cable

  • Connect four fans from one motherboard header
  • 27 cm cable length fits most chassis
  • One 4-pin port reads speed for PWM control
  • Three 3-pin ports provide voltage control only
  • Snakeskin sleeve protects wires during routing

Four-way PWM fan splitter

This 27 cm adapter turns a single motherboard 4-pin header into four fan connections. Builders who need more cooling headers than the board provides can run up to four PWM or 3-pin fans from one socket. The cable is intended for internal case routing in standard desktop builds. It is not suited for external devices or non-PWM voltage-controlled fans.

Sustained-load behaviour

All four fans receive the same PWM duty cycle from the motherboard, so speed scales together under continuous thermal load. Only the first connector carries a tachometer wire; the remaining three report no RPM data to the BIOS or monitoring software. This avoids signal conflicts but means the system cannot verify individual fan health during long sessions. The splitter itself adds no active regulation or current limiting.

Build and connectors

A snakeskin mesh sleeve protects the wires during routing and resists abrasion against case edges. The main plug is a standard 4-pin PWM header; one output retains the full 4-pin layout while the other three are 3-pin sockets that still accept 4-pin fan plugs without the speed wire. No additional mounting hardware or external power input is required. Users who need per-fan RPM monitoring must connect those fans directly to the board instead.

Highlights

  • Connect four fans from one motherboard header
  • 27 cm cable length fits most chassis
  • One 4-pin port reads speed for PWM control
  • Three 3-pin ports provide voltage control only
  • Snakeskin sleeve protects wires during routing

Specifications

No published specifications for this item yet.

Questions about this item

Does the 27 cm cable add noticeable resistance or heat when four fans run all day?

The splitter is a passive 27 cm cable with no active electronics, so it adds negligible resistance and no measurable heat under normal fan loads.

What motherboard header do I need so all four fans receive PWM control?

A single 4-pin PWM header is required; the splitter provides one full 4-pin branch for speed feedback and three 3-pin branches that still receive the PWM duty-cycle signal.

If I mix older 3-pin fans with a newer 4-pin fan on this splitter, how will speed control behave?

The 4-pin branch reports RPM to the motherboard while all four fans — including the three 3-pin branches — follow the same PWM duty cycle from that header.

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