Corsair iCUE Link QX120 RGB vs Corsair iCUE Link LX140-R RGB: Spec Comparison
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You are comparing the corsair icue link qx120 RGB vs icue link lx140 r RGB to decide which fans fit your build. Both use Corsair’s Magnetic Dome bearing for quiet operation and feature RGB lighting controlled via the iCUE Link system. The main difference lies in size and airflow. The QX120 offers three 120mm fans in a triple pack, while the LX140 provides two 140mm reverse-rotor fans. Your choice depends on whether you prioritize higher static pressure for radiators or larger airflow for case ventilation.
Key differences
| Aspect | Corsair iCUE Link QX120 RGB 120mm Triple Pack | Corsair iCUE Link LX140-R RGB 140mm Reverse Fans |
|---|---|---|
| Fan Size | 120mm | 140mm |
| Quantity | Triple Pack (3 fans) | Dual Fan Kit (2 fans) |
| Max Airflow | 63.1 CFM per fan | 90.6 CFM per fan |
| Static Pressure | 3.8mm-H2O | 4.22mm H2O |
| Blade Direction | Standard | Reverse |
| RGB LEDs | 34 LEDs (2 zones) | 18 LEDs per fan (2 loops) |
Which one should you choose?
Choose Corsair iCUE Link QX120 RGB 120mm Triple Pack if
- You need three fans for dense radiator mounting or high static pressure applications.
- You prefer the compact 120mm form factor for standard case layouts.
- You want the Time Warp lighting mode exclusive to the QX series.
Choose Corsair iCUE Link LX140-R RGB 140mm Reverse Fans if
- You prioritize maximum airflow for general case ventilation.
- You want reverse-rotor fans to keep the RGB ring visible on intake mounts.
- You need higher static pressure for thick radiators than the QX120 provides.
Verdict: Choose the QX120 if you need a triple pack of 120mm fans for tight radiator spacing or specific lighting effects. Choose the LX140 if you want higher airflow per fan and the aesthetic benefit of reverse-rotor designs. Both options integrate seamlessly with the iCUE Link ecosystem.
QX120 vs LX140-R Fan Comparison
Airflow performance
The Corsair iCUE Link LX140-R RGB delivers significantly higher airflow than the QX120 RGB. The LX140-R pushes 90.6 CFM at its maximum speed of 2,000 RPM. This makes it highly effective for moving large volumes of air through a case. The QX120 RGB offers 63.1 CFM at 2,400 RPM. While the QX120 spins faster, the larger 140mm blades of the LX140-R move more air per rotation. If your primary goal is maximum cooling capacity for a spacious case, the LX140-R is the stronger choice for bulk air movement.
Static pressure
Static pressure measures a fan's ability to push air through dense obstacles like radiators or dust filters. The LX140-R RGB generates 4.22 mm-H2O of static pressure. The QX120 RGB provides 3.8 mm-H2O. The higher pressure of the LX140-R makes it better suited for mounting on radiators or thick mesh panels where resistance is high. The QX120 RGB is still capable, but the LX140-R has a clear advantage in forcing air through restrictive components. This spec is critical if you are building a custom loop or using high-RPM radiators.
Lighting configuration
Both fans feature RGB lighting, but the implementation differs. The QX120 RGB contains 34 LEDs across two distinct light zones on each fan. This setup supports exclusive modes like Time Warp. The LX140-R RGB uses 18 LEDs per fan, arranged in an inner and outer loop. The LX140-R also features a reversed rotor design, ensuring the RGB ring remains fully visible even during intake mounting. The QX120 RGB does not mention reversed rotors. If visible lighting aesthetics from all angles are a priority, the LX140-R offers a more consistent visual experience.
Fan size and fit
The physical size of the fans dictates which cases you can use. The QX120 RGB is a 120mm fan. The LX140-R RGB is a 140mm fan. Most mid-tower cases support 120mm fans, but 140mm fans require larger mounting holes or specific case models. If you are building in a compact case or a case that only supports 120mm fans, the QX120 RGB is the only compatible option. The LX140-R RGB requires a case with 140mm fan support. Check your case specifications carefully before choosing, as 140mm fans are larger and may not fit in standard 120mm slots.
Speed and noise
Both fans use Magnetic Dome bearings for quiet operation and support Zero RPM mode. The QX120 RGB reaches a higher maximum speed of 2,400 RPM. The LX140-R RGB tops out at 2,000 RPM. Higher RPMs generally produce more noise, but the Magnetic Dome bearing helps reduce friction and noise at lower speeds. The QX120 RGB can spin faster, which might be noticeable under heavy load. The LX140-R RGB achieves high airflow at a lower RPM, potentially offering a quieter experience at similar cooling performance levels. Both fans offer precise PWM control for balancing noise and cooling.
Choose Your Corsair iCUE Link Fan
You need maximum airflow for a high-airflow case setup
The LX140-R moves 90.6 CFM of air, which is significantly more than the QX120’s 63.1 CFM. Its larger 140mm size and reverse rotor design help push more air through radiators and mesh panels. If your priority is cooling performance over aesthetics, this fan delivers superior volume.
You want visible RGB lighting on intake fans
The LX140-R features a reversed rotor design that keeps the RGB ring fully visible even when mounted as an intake fan. The QX120 does not offer this specific aesthetic benefit. If you want your intake fans to show off their dual light loops clearly, the LX140-R is the better choice.
You prefer higher RPM speeds for active cooling
The QX120 reaches a maximum speed of 2,400 RPM, which is higher than the LX140-R’s 2,000 RPM limit. While it moves less total air, the higher spin rate can be useful in specific tight spaces or when you need faster response to temperature spikes. The QX120 also supports Zero RPM mode for silence.
You want a triple pack for dense airflow
The QX120 comes as a triple pack of 120mm fans, giving you three units for installation. The LX140-R is sold as a dual pack of 140mm fans. If your case requires three 120mm mounts and you want more individual fans for your build, the QX120 triple pack provides the quantity you need.
The products compared
Corsair iCUE Link QX120 RGB 120mm Triple Pack
Best for: High airflow 120mm builds with iCUE LINK
- Fan Size
- 120mm
- Max Fan Speed
- 2,400 RPM
- Max Airflow
- 63.1 CFM
- Static Pressure
- 3.8mm-H2O
- Bearing Type
- Magnetic Dome
- Lighting Type
- RGB
View on Amazon: Corsair iCUE Link QX120 RGB 120mm Triple Pack Affiliate link
The Corsair QX120 RGB is a triple-pack of 120mm fans designed for high airflow and precise lighting. It reaches 2,400 RPM for 63.1 CFM and 3.8mm-H2O static pressure. The Magnetic Dome bearing reduces friction for quiet operation. You get 34 RGB LEDs with Time Warp modes via iCUE LINK. It includes bridge connectors for a clean, cable-free setup. This kit suits users prioritizing speed and visual customization.
Pros
- High max speed of 2,400 RPM for strong airflow
- Magnetic Dome bearing reduces friction at low speeds
- 34 RGB LEDs with exclusive Time Warp lighting modes
- Zero RPM mode eliminates noise at low loads
- Includes bridge connectors for wire-free chaining
Cons
- 120mm size offers less airflow than 140mm alternatives
- Requires iCUE LINK System Hub for full functionality
- White color limits match for dark-themed builds
Good fit if
- You want high airflow in a 120mm form factor
- You prefer a clean look with no visible wires
- You value customizable RGB lighting effects
Skip if
- You need larger 140mm fans for maximum airflow
- You do not have an iCUE LINK hub
- You prefer black components for your build
Verdict: Corsair QX120 RGB 120mm Fan 3-Pack delivers high-speed cooling and advanced lighting for users with iCUE LINK hubs who need compact 120mm fans. It fits builders who prioritize airflow density and visual customization over the lower noise of larger fans.
Corsair iCUE Link LX140-R RGB 140mm Reverse Fans
Best for: White builds with radiator cooling needs
- Fan Size
- 140mm
- Max Fan Speed
- 2,000 RPM
- Max Airflow
- 90.6 CFM
- Static Pressure
- 4.22mm H2O
- Bearing Type
- Magnetic Dome
- Lighting Type
- RGB
View on Amazon: Corsair iCUE Link LX140-R RGB 140mm Reverse Fans Affiliate link
The Corsair iCUE Link LX140-R RGB is a dual 140mm fan kit designed for clean, white PC builds. It features reversed rotors to keep the RGB ring visible during intake. With a max speed of 2,000 RPM, it delivers 90.6 CFM airflow and 4.22mm H2O static pressure. The magnetic dome bearing ensures quiet operation. It connects via iCUE Link bridge connectors for a single-cable setup.
Pros
- Reversed rotor design keeps RGB visible on intake
- 18 LEDs per fan with dual light loops
- 90.6 CFM max airflow at 2,000 RPM
- 4.22mm H2O static pressure for radiators
- Magnetic dome bearing for reduced friction
Cons
- 140mm size requires more case space than 120mm fans
- Only two fans included in the kit
- Requires iCUE Link hub for full functionality
Good fit if
- You want a clean white build with visible RGB
- You need high static pressure for radiators
- You prefer a single-cable fan connection
Skip if
- You only have 120mm fan mounts available
- You do not use the iCUE Link ecosystem
- You need a single fan rather than a kit
Verdict: Corsair LX140-R RGB 140mm Reverse Fan is ideal for builders who prioritize visible lighting and high static pressure in a white-themed system. It fits those using iCUE Link hubs who need robust cooling for radiators.
Specifications side by side
| Spec | Corsair iCUE Link QX120 RGB 120mm Triple Pack | Corsair iCUE Link LX140-R RGB 140mm Reverse Fans |
|---|---|---|
| Fan Size | 120mm | 140mm |
| Max Fan Speed | 2,400 RPM | 2,000 RPM |
| Max Airflow | 63.1 CFM | 90.6 CFM |
| Static Pressure | 3.8mm-H2O | 4.22mm H2O |
| Bearing Type | Magnetic Dome | Magnetic Dome |
| Lighting Type | RGB | RGB |
| Blade Direction | not stated | Reverse |
| Lighting | RGB | RGB |
| Dimensions | 4.72 × 4.72 × 0.1 inches | 5.51 × 5.51 × 0.98 inches |
| Weight | 1.42 pounds | 1.01 pounds |
| Size | Triple (120mm) | 2 x 140mm |
| Color | White | White |
| Model | CO-9051006-WW | CO-9051056-WW |
Frequently asked questions
Can I mix the QX120 and LX140-R fans in one build?
Yes, you can mix these fans. Both models connect to the iCUE Link hub system. This allows you to manage them together in software. You just need to ensure your case has the correct mounting holes for 120mm and 140mm slots. The hub handles the power and data for all connected units.
Are the QX120 fans sold as a single unit or a pack?
The QX120 RGB is sold as a triple pack. You receive three 120mm fans in one box. This is useful if you need to fill multiple 120mm slots in your case. The LX140-R comes as a pair of 140mm fans. Check your case capacity to decide which pack size fits your needs.
Do these fans work with standard PWM headers?
No, these specific models use the iCUE Link system. They do not use standard 4-pin PWM headers. You must use a compatible iCUE Link hub to power and control them. This hub connects to your motherboard via USB. It manages the fan speeds and RGB lighting for all linked devices.
Which fan is better for a white-themed PC build?
Both options come in white. The QX120 RGB triple pack offers white fans for 120mm slots. The LX140-R RGB pair provides white 140mm fans. Choose based on your case size. If you have 140mm mounts, the LX140-R is ideal. If you only have 120mm mounts, the QX120 is the right choice.
What is the main difference in fan size between these two?
The QX120 uses 120mm fans. The LX140-R uses larger 140mm fans. This size difference affects airflow and noise. Larger fans generally move more air at lower speeds. The LX140-R is designed for higher static pressure and airflow due to its size. The QX120 is compact for smaller cases.
Do these fans include RGB lighting for customization?
Yes, both models feature RGB lighting. The QX120 RGB and LX140-R RGB allow you to customize colors and effects. You control these settings through the iCUE software. The lighting syncs with other iCUE Link components. This creates a unified look across your entire system build.