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Black 140mm case fan with dual RGB light loops and 16 LEDs

Corsair

Corsair CO-9050073-WW LL140 RGB 140mm case fan

SKU CH-3G1M-E11GD MPN CO-9050073-WW

A 140 mm PWM case fan with dual RGB light loops and 16 independent LEDs, running 600 to 1300 RPM for 51.5 CFM at 25 dBA

  • Fan Counts1 Fan
  • Fan ControllerNo Controller
  • TypeCase Fan
  • CompatibilityCase
  • Fan Size140mm
  • Fan Thickness25mm

Fan Size 140mm

Model · Option Single Pack · 1 Pack

  • 16 independent RGB LEDs in dual loops enable extensive lighting customisation
  • PWM control from 600 to 1300 RPM balances airflow and noise
  • 140 mm hydraulic bearing fan delivers 51.5 CFM at 25 dBA
  • 25 mm thick black frame fits standard 140 mm case mounts
  • Single-fan expansion pack requires Lighting Node PRO and RGB hub for full RGB control

Single 140mm RGB case fan

The Corsair LL140 RGB is a single 140mm case fan with dual light loops that hold 16 independent RGB LEDs. It connects through a standard 4-pin PWM header so the motherboard can vary speed between 600 and 1300 RPM. The hydraulic bearing and black frame are built for quiet airflow in compatible cases. This unit is sold as an expansion for an existing LL140 RGB kit and requires a separate RGB lighting hub and Lighting Node PRO for illumination control.

Quiet thermals at 25 dBA

At the rated 1300 RPM the fan moves 51.5 CFM while producing 25 dBA of noise, a level suited to low-noise builds. The 25mm-thick blade profile is engineered to keep acoustic output low without sacrificing the stated airflow. PWM control lets the system drop to 600 RPM for lighter loads, further reducing sound and power draw during typical desktop use.

Sustained load behaviour

Under continuous demand the fan can hold its maximum 1300 RPM within the specified 10 percent tolerance, delivering the full 51.5 CFM for as long as the thermal curve requires. The hydraulic bearing maintains consistent speed without the rattle that can appear in sleeve designs over time. Because RGB power comes from the external hub and Node PRO, the fan’s own 4-pin connector only handles motor current, keeping the PWM signal clean during extended high-speed runs.

Highlights

  • 16 independent RGB LEDs in dual loops enable extensive lighting customisation
  • PWM control from 600 to 1300 RPM balances airflow and noise
  • 140 mm hydraulic bearing fan delivers 51.5 CFM at 25 dBA
  • 25 mm thick black frame fits standard 140 mm case mounts
  • Single-fan expansion pack requires Lighting Node PRO and RGB hub for full RGB control

Specifications

BrandCorsair
SeriesLL Series LL140 RGB
ModelCO-9050073-WW
Fan Counts1 Fan
Fan ControllerNo Controller
TypeCase Fan
CompatibilityCase
Fan Size140mm
Fan Thickness25mm
Bearing TypeHydraulic Bearing
RPM600 - 1300 +/- 10% RPM
Air Flow51.5 CFM
Noise Level25 dBA
Power Connector4 Pin
ColorBlack
LEDRGB
FeaturesDual RGB Lighting Loop: 16 Independent RGB LEDs in every fan, split between two separate light loops, allow for nearly endless customization
Expansion Kit: This product is intended as an expansion of the LL140 RGB LED 2 fan kit with Lighting Node PRO. The RGB functionality of this product requires a RGB Lighting hub and Lighting Node PRO.
Complete PWM Control: Dynamically control fan speed from 600 RPM to 1,300 RPM to minimize noise or maximize airflow
Created for Quiet: 140mm Fan blade engineered for low-noise operation without sacrificing performance
Dimensions140.00 x 140.00 x 25.00 mm
Package Contents1 x Fans
4 x Fan Mounting Screws
Shipping weight0.31 kg
Package size175 × 152 × 38 mm

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Questions about this item

How do I install the 140mm LL140 RGB fan and connect its dual light loops correctly?

Mount the 140mm fan using the four included screws, plug the 4-pin PWM connector into a motherboard header for speed control, and attach the two RGB cables to a Corsair RGB Lighting Hub linked to a Lighting Node PRO — the hub powers both independent light loops.

What maintenance will the hydraulic bearing and 16 RGB LEDs need over time?

The hydraulic bearing is sealed and requires no lubrication; clean dust from the blades and frame with compressed air every few months to keep airflow at 51.5 CFM and noise near 25 dBA, while the 16 LEDs are solid-state and need no replacement.

At what point does the 1300 RPM limit cap sustained cooling performance?

The fan tops out at 1300 RPM ±10 %, so under prolonged loads the maximum airflow stays at 51.5 CFM; if the case needs more air than that, the bottleneck is the fan’s speed ceiling, not the PWM signal.

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