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Black metal bracket with four fan headers and four knobs, powered by a SATA 15pin connector

EN-Labs

EN-Labs PCITX3CO4S 4-Channel Fan Speed Controller, SATA 15pin

SKU CH-TMB3-9EJGZ

Four-channel fan controller fits a PCI slot, powers via SATA 15pin, and lets each knob turn its channel off or up to 100% speed

  • First connectorSATA 15pin power
  • Second connector4 × 3pin Male
  • Connector count5
  • Product typeFan Speed Controller
  • DetailsType - PCI Slot 4 Channel Fan Speed Controller Fan quantity
  • Key featuresEN-Labs PCITX3CO4S fan speed controller is suitable all kind
  • Individual control of four fans via PCI slot
  • Each channel adjustable from 0% to 100% with off switch
  • Stepless voltage regulation suits 3-pin and 4-pin fans
  • Powered by SATA 15pin for stable 1A per channel
  • Knob-based adjustment gives tactile speed tuning per fan

4-Channel Fan Controller for 3-pin and 4-pin Fans

The EN-Labs PCITX3CO4S fits a PCI slot bracket and lets you regulate up to four case or component fans independently. Each channel accepts a 3-pin or 4-pin connector and adjusts speed by varying voltage from zero to full rotation. Power is drawn from a single SATA 15pin connector on the power supply.

Knob-Based Voltage Control with Off Position

A dedicated rotary knob per channel provides stepless voltage governance, so you can silence a fan completely or run it at 100 percent without software. The controller supports both 3-pin and 4-pin headers, though 4-pin fans operate in voltage mode only, not PWM. Maximum current per channel is rated at 1A.

Check Fan Current Draw

Verify that each fan you intend to connect draws no more than 1A, as the controller cannot protect against higher loads. Ensure your power supply has a free SATA 15pin lead for the controller’s input power. Builders who need PWM signalling or more than four channels will need a different solution.

How it compares

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

Price $13.99
Cheaper than about 55% of the 7,839 comparable items (median $14.99).

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Specifications

Product
Brand nameEN-Labs
Model namePCITX3CO4S
Product typeFan Speed Controller
Ports & slots
First connectorSATA 15pin power
Second connector4 × 3pin Male
Connector count5

Questions about this item

What does the SATA 15pin power connector limit each channel to?

The SATA 15pin connection supplies power with a maximum of 1A per channel for the four fan headers.

What space inside the case is required to mount the controller bracket?

It occupies one standard PCI slot opening at the rear of the chassis.

How are the fans connected and the speed set for each channel?

Plug each 3-pin or 4-pin fan into its own 3-pin header, then turn the corresponding knob; pushing the knob in switches that channel off.

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