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Two black braided 30cm 4-pin PWM fan extension cables

Micro Connectors

Micro Connectors PWM-100BK 30cm 4-Pin PWM fan extension cable 2-pack black internal power cable

SKU CH-Y4WW-QZFGC MPN PWM-100BK.

Extends 4-pin PWM or 3-pin fans by 30 cm with sleeved cables in a two-pack

  • Connector count2
  • Product typeExtension Cable
  • Product colorBlack
  • Extends 4-pin PWM fan reach by 30cm
  • Two cables included for dual-fan setups
  • Premium weave sleeving protects wires inside the case
  • Works with 4-pin PWM and 3-pin fan headers
  • High-quality assembly ensures reliable power delivery

Extension cable for PWM fans

This 30 cm extension cable adds reach between a motherboard header or fan controller and a 4-pin PWM fan. The pack contains two black cables with premium weave sleeving for a clean internal look. Each assembly uses a 4-pin connector that also accepts 3-pin fans. It suits builders who need extra length for tidy cable routing.

Replaces short factory leads

Stock fan cables often fall short in larger cases or when routing behind a motherboard tray. This extension bridges the gap without splicing or crimping. The jump is worth it when the original lead cannot reach the desired header or when a neat, sleeved run is preferred. It is not for builders who need a splitter to run multiple fans from one header.

Behaviour under sustained load

The cable carries the PWM signal and power continuously with no active components to degrade. Premium weave sleeving resists abrasion during long-term vibration from spinning fans. Connectors maintain secure contact through thermal cycles inside a running system. No performance change occurs over time because the link is purely passive.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 91% of the 7,839 comparable items (median $14.99).

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Specifications

Product
Product typeExtension Cable
Product colorBlack
Ports & slots
Connector count2

Questions about this item

Will the 30 cm length reach from a motherboard header to a rear-case fan mount?

The cable measures 30 cm end to end, so measure your routing path before ordering.

How do I connect the 4-pin PWM plug to a 3-pin fan header without losing speed control?

Align the keyed tab on the 4-pin connector with the missing pin on the 3-pin header; the fourth wire simply hangs free and PWM control is disabled.

When should I replace the sleeved extension if fan speeds become erratic?

Inspect the premium weave sleeving for fraying or crushed wires after any case rebuild; replace the cable if the 4-pin connectors feel loose or show bent pins.

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