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Small black rectangular hub with multiple fan headers and SATA power connector

Ruth's sister

Ruth's sister Fan Governor 4-way SATA Control Hub

SKU CH-1A5V-AW597

A SATA-powered fan governor with four channels, adjustable voltage up to 11 V, and 72 W total capacity

  • Four-channel fan control from a single hub
  • Adjustable voltage down to zero for silent running
  • SATA and 4-pin power inputs for flexible PSU connection
  • 12 V maximum output with 72 W total capacity
  • Built-in protection chip limits each channel to 1.5 A

Fan Governor 4-Way SATA Hub

The Ruth's sister Fan Governor is a new internal power cable hub that lets you manually adjust voltage for up to four chassis fans. It accepts both 3-pin and 4-pin PWM connectors and draws power from either a standard 4-pin peripheral connector or a SATA interface. A built-in protection chip helps guard against electrical faults during operation.

Suited to builders wanting manual speed control

This hub suits builders who want direct, knob-based control over fan voltage without relying on motherboard headers or software curves. It can completely shut off fans and dim integrated LEDs as voltage drops. Buyers who need automated temperature curves, PWM signal pass-through, or per-channel current monitoring should look at a different controller.

1.5 A per-channel current limit

Each of the four output channels is rated for a maximum of 1.5 A, so the total connected load must stay within that per-channel ceiling. The unit’s theoretical peak is 6 A or 72 W at up to 11 V output, but exceeding 1.5 A on any single port can cause reliability issues. Verify every fan’s rated current before connecting.

Highlights

  • Four-channel fan control from a single hub
  • Adjustable voltage down to zero for silent running
  • SATA and 4-pin power inputs for flexible PSU connection
  • 12 V maximum output with 72 W total capacity
  • Built-in protection chip limits each channel to 1.5 A

Specifications

No published specifications for this item yet.

Questions about this item

How do I verify the fan governor is regulating voltage correctly after installation?

Measure the fan voltage with a multimeter; the governor adjusts up to 11 V, and at full 12 V the fan runs at maximum speed.

Which cables and connectors are included with the governor?

The hub provides a 4-pin power connector and a SATA power connector for the supply side, plus four channels that accept both 3-pin and 4-pin fan headers.

Which version should I choose if I need to run four fans with LED lighting?

Select the 4-way model; each channel supports up to 1.5 A, and note that LED brightness will dim when fan speed is reduced.

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