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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 size140 mm
  • Number of fans1 Fan
  • Fan controlNo Controller
  • Fan depth25 mm
  • Bearing designHydraulic Bearing
  • Rotational speed600–1300 +/- 10% RPM

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.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $37.99
Pricier than about 83% of the 8,339 comparable items (median $19.99).
Fan size 140 mm
Higher than about 80% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Brand nameCorsair
Product lineLL Series LL140 RGB
Model nameCO-9050073-WW
Product typeCase Fan
Product colorBlack
Performance
Rotational speed600–1300 +/- 10% RPM
Airflow rate51.5 CFM
Power
Power input connector4 Pin
Size & build
Fan size140 mm
Number of fans1 Fan
Fan depth25 mm
Bearing designHydraulic Bearing
Product dimensions140 × 140 × 25 mm
Shipping weight0.31 kg
Package size175 × 152 × 38 mm
Compatibility
Compatible withCase
In the box
In the box1 x Fans
4 x Fan Mounting Screws
Environment & compliance
Operating noise25 dBA
More details
Fan controlNo Controller
LED lightingRGB

Other versions of this model

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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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