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Two black USB-to-4-pin fan controllers with inline dials, 11.8 inch cables

LORDWORLD

LORDWORLD 2-pack USB 5V to 12V 4-pin fan speed controller 11.8inch

SKU CH-01RX-JEPJA

Converts USB 5 V power to adjustable 12 V output for controlling 4-pin fans up to 8 W, supplied as a pair of 11.8 inch cables with tinned copper wiring

  • Powers 12 V fans from any USB 5 V source
  • Adjust fan speed precisely with the built-in rotary dial
  • Two controllers included for dual-fan setups
  • 24 AWG tinned copper wiring resists corrosion and oxidation
  • 8 inch cable length suits compact chassis routing

Two-pack USB fan speed controllers

This pack contains two LORDWORLD adapters that let a standard USB 5 V port drive a 4-pin 12 V PWM fan. Each unit includes an inline switch and rotary dial so the fan speed can be adjusted manually without software. The 11.8 inch cable length suits internal chassis routing or external cooling setups.

Power limited to 8 watts from USB 5 V

The adapter boosts the USB input to a 5–12 V DC output but is capped at 8 W maximum. Only 12 V fans drawing less than 8 W are supported; higher-power fans will not start or may trigger USB port protection. The 4-pin connector carries only power and ground — the two signal pins are unused because the USB source provides no PWM or tachometer lines.

Manual dial replaces motherboard PWM control

Speed is set exclusively by the physical dial on the cable; there is no automatic temperature curve or motherboard fan header integration. Builders who need closed-loop PWM control tied to system sensors should use a native 4-pin header instead.

Highlights

  • Powers 12 V fans from any USB 5 V source
  • Adjust fan speed precisely with the built-in rotary dial
  • Two controllers included for dual-fan setups
  • 24 AWG tinned copper wiring resists corrosion and oxidation
  • 8 inch cable length suits compact chassis routing

Specifications

BrandLORDWORLD

Questions about this item

Should I get the single unit or the 2-pack for my build?

The product ships as a 2-pack containing two 11.8 inch controllers so you can run two fans from separate USB ports

What does the 8W maximum output mean for my 12V fan in daily use?

It limits the controller to low-power 12V fans drawing under 8W so larger or high-static-pressure models may not reach full speed

Does the 4-pin connector give me PWM control or just voltage regulation?

Only two wires are connected inside the 4-pin plug so the dial adjusts voltage from 5 to 12V while the PWM and tach pins remain unused

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