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A PCI-slot bracket with four three-pin fan headers and a Molex power plug

EN-Labs

EN-Labs PCITX3CO4D 4-Channel Fan Speed Controller internal power cable

SKU CH-X07T-MQAB2

Four-channel voltage regulator fits a PCI slot and lets you dial each 3-pin or 4-pin fan from off to 100 % via Molex power

  • TypeFan Speed Controller
  • Connector AMole 4pin
  • Connector B4 x 3pin Male
  • Connector Number5
  • SpecificationsType - PCI Slot 4 Channel Fan Speed Controller Fan quantity
  • FeaturesEN-Labs PCITX3CO4D fan speed controller is suitable all kind
  • Independent speed control for four fans via PCI-slot knobs
  • Each channel adjustable from off to 100% full speed
  • Voltage-based regulation works with any 3-pin or 4-pin fan
  • Powered by a single Molex connector, no motherboard headers needed
  • Manual knobs with off switch give instant, tactile fan tuning

Four-Channel Fan Controller for PCI Slot

The EN-Labs PCITX3CO4D installs in a full-profile PCI bracket and provides four independent channels to regulate 3-pin or 4-pin fans. Each channel draws power from a single Molex connector and handles up to 1 A. A front-mounted knob per channel lets you dial speed from off to full rotation.

Suited for voltage-controlled cooling setups

Builders who want manual, per-fan speed adjustment without software will find this controller straightforward. It is not for systems that require PWM signalling or motherboard-based fan curves, because the unit regulates voltage only and does not pass PWM control signals.

Stepless voltage regulation from 0 to 100

The regulator varies voltage continuously across the entire range, so each fan can be stopped, run at any intermediate speed, or spun at 100 percent. This single specification determines whether the controller matches fans that accept voltage control.

Highlights

  • Independent speed control for four fans via PCI-slot knobs
  • Each channel adjustable from off to 100% full speed
  • Voltage-based regulation works with any 3-pin or 4-pin fan
  • Powered by a single Molex connector, no motherboard headers needed
  • Manual knobs with off switch give instant, tactile fan tuning

Specifications

BrandEN-Labs
ModelPCITX3CO4D
TypeFan Speed Controller
Connector AMole 4pin
Connector B4 x 3pin Male
Connector Number5
SpecificationsType - PCI Slot 4 Channel Fan Speed Controller Fan quantity controller - 4 Channel Speed Controller method - Regulator Stepless Voltage Governor Power by - Molex 4pin Current - 1A max each Channel Range - 0% ~ 100%(turn off ~full speed) controller by - Adjustable knob w/ OFF switch
FeaturesEN-Labs PCITX3CO4D fan speed controller is suitable all kinds of 3pin or 4pin fans speed controlling,such as CPU fan, chassis fan, video card fan, south bridge fan, north bridge fan, hard disk fan, server fan, inverter fan etc. Fan speed controller to tune up / down fan speed by by knob. Easy way to adjust case fan speed and cooling effect. Support 4 channels fan speed adjust individually Each channel can be turned off or adjusted to 100% full speed Adjustable knob available to adjust cooling fan revolution speed for each fan individually Each channel can control 4-pin fan, 3-pin fan

Questions about this item

Will the EN-Labs PCITX3CO4D fit alongside my older PCI expansion cards?

The controller occupies a single full-profile PCI slot bracket and draws power from a Molex 4-pin connector, so it installs next to legacy cards without using a PCIe lane.

How can I verify each of the four channels is regulating speed correctly after installation?

Turn each knob from the OFF position through the 0% to 100% range and confirm the connected fan spins up smoothly and stops cleanly at the OFF detent.

Which cables and connectors come in the box, and what must I provide separately?

The unit includes the controller with four 3-pin male fan headers and a Molex 4-pin power plug; you supply the Molex lead from your PSU and the 3-pin or 4-pin fans you wish to control.

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