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Black DC 5.5x2.1mm male plug to 4-pin PWM fan connector cable

SMUGDESK

SMUGDESK DC 5.5x2.1mm Male to 4 Pin PWM Fan Power Cable computer power adapter cord

SKU CH-0TDJ-5KFKR

Connects a 5.5x2.1mm DC power source to a 4-pin PWM fan for speed-controlled cooling

  • Powers 4-pin PWM fans from a DC 5.5x2.1mm source
  • PWM signal retained for speed control with compatible controllers
  • Tinned copper conductors give stable current and low heat
  • Flexible insulated sheath resists wear and cracking
  • Plug-and-play adapter for PC, router and DIY cooling

DC 5.5x2.1mm to 4-pin PWM fan adapter

This cable converts a DC 5.5x2.1mm power jack into a standard 4-pin PWM fan connector. It lets you run cooling fans directly from a DC power supply without a motherboard header. The adapter preserves the PWM signal wire so speed control works with compatible controllers. It is aimed at builders adding independent cooling to PCs, routers or test benches.

Suited for DIY cooling and auxiliary fan power

Hobbyists powering extra case fans, router ventilation or small-equipment heat dissipation will find the plug-and-play design convenient. The tinned copper conductors keep resistance low for stable current delivery. Buyers who need to draw power from an internal motherboard header or a Molex connector should look at a different cable type. This product only accepts a DC barrel-plug source.

Stable output during continuous operation

Tinned copper wire and a flexible insulated sheath reduce heat build-up and resist cracking under repeated bending. Precise terminal crimping maintains tight contact so vibration does not cause intermittent power loss. The cable sustains reliable current transmission for long-running cooling setups. No active electronics are included, so thermal behaviour depends entirely on the attached power supply and fan load.

Highlights

  • Powers 4-pin PWM fans from a DC 5.5x2.1mm source
  • PWM signal retained for speed control with compatible controllers
  • Tinned copper conductors give stable current and low heat
  • Flexible insulated sheath resists wear and cracking
  • Plug-and-play adapter for PC, router and DIY cooling

Specifications

No published specifications for this item yet.

Questions about this item

What power source do I need to already have to use the 5.5x2.1mm plug on this adapter?

You need a DC power supply or adapter that provides a 5.5 mm outer diameter and 2.1 mm inner diameter barrel jack output.

Will the PWM speed signal work if I connect a 3-pin fan to the 4-pin connector on this cable?

The 4-pin connector carries a PWM signal line, but a 3-pin fan lacks the fourth pin for PWM control and will run at full voltage instead.

How can I confirm the cable is delivering stable power to my fan after plugging it in?

The fan should spin up immediately and respond to speed changes from your PWM controller without stalling or intermittent stops.

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