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Black 30 cm cable with 3-pin to 4-pin PWM fan connectors

Phobya

Phobya 3-Pin to 4-Pin PWM Fan Cable 30cm Black 81121

SKU CH-EEKX-CXMS7

Connects a 3-pin fan to a 4-pin PWM motherboard header over 30 cm in black

  • Product colorBlack
  • Key features3-Pin fan connector to 4-pin PWM fan connector.
  • Connects 3-pin fans to 4-pin PWM headers
  • 30 cm length suits tight case routing
  • Black finish matches dark-themed builds
  • Enables PWM speed control on 3-pin fans
  • Simple plug-and-play adapter for fan upgrades

Phobya 3-Pin to 4-Pin PWM Fan Cable 30cm

This adapter cable connects a three-pin fan header to a four-pin PWM fan connector. It measures 30cm in length and comes in black. The product is new and carries the manufacturer part number 81121.

Builders adapting older headers to modern PWM fans

The cable suits anyone who needs to run a four-pin PWM fan from a three-pin motherboard or controller header. It will not help builders who require a direct four-pin to four-pin extension or a different cable length.

30cm reach for tight routing

The 30cm length provides enough slack for close-range connections inside compact chassis. Longer runs across full-tower cases or behind motherboard trays will exceed the available cable.

How it compares

Measured against everything we stock in USB & Parallel Printer Cables, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 70% of the 127 comparable items (median $11.99).

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Specifications

Product
Brand namePhobya
Model name81121
Product colorBlack

Questions about this item

Do I need a motherboard header that provides a 4-pin PWM signal for this cable to control fan speed?

Yes, the 4-pin end plugs into a PWM header so the board can regulate the 3-pin fan speed via pulse-width modulation.

Will this adapter let me run a 3-pin fan from an older 4-pin header without losing speed control?

The 3-pin fan connects to the 3-pin side while the 4-pin side draws the PWM signal from the header, preserving automatic speed control.

After connecting the cable, how can I confirm the fan responds to PWM changes?

Enter the BIOS or fan-control software and watch the RPM reading change as you adjust the duty-cycle curve for that header.

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