Corsair iCUE Link LX140 RGB or Corsair RS120-R ARGB 120mm Reverse? Which Corsair Model to Buy
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You are comparing the corsair icue link lx140 RGB vs rs120 r argb 120mm pwm fans. Both models use Corsair’s Magnetic Dome bearing for quiet operation and support PWM speed control. The main difference lies in their ecosystem and physical design. The LX140 is a 140mm fan that requires the proprietary iCUE Link hub system for control and daisy-chaining. The RS120-R is a 120mm reverse-rotor fan that connects directly to standard motherboard ARGB headers.
Key differences
| Aspect | Corsair iCUE Link LX140 RGB 140mm Fan | Corsair RS120-R ARGB 120mm Reverse Fan |
|---|---|---|
| Fan Size | 140mm | 120mm |
| Lighting Type | RGB (18 LEDs) | +5V ARGB (8 LEDs) |
| Control Method | iCUE Link System Hub (required) | Motherboard ARGB header |
| Max Airflow | 84.6 CFM | 65.8 CFM |
| Static Pressure | 4.82 mmH2O | 2.81 mmH2O |
| Blade Direction | Standard | Reverse |
Which one should you choose?
Choose Corsair iCUE Link LX140 RGB 140mm Fan if
- You already own an iCUE Link System Hub and want to simplify cable management with daisy-chained fans.
- You need higher static pressure for mounting fans to radiators or dense mesh filters.
- You prefer larger 140mm fans for quieter operation at higher airflow volumes.
Choose Corsair RS120-R ARGB 120mm Reverse Fan if
- You want to control RGB lighting directly through your motherboard’s software without extra hubs.
- You are building a case that requires 120mm fans, especially for front intake positions.
- You need reverse-rotor fans to ensure the lighting remains visible when mounted as an intake.
Verdict: The LX140 RGB is the better choice if you are invested in the iCUE Link ecosystem and need higher airflow and static pressure. The RS120-R ARGB is more suitable for standard builds where you want direct motherboard control and a reverse-rotor design for aesthetic visibility. Your decision should depend on your case size and existing control hardware.
LX140 vs RS120-R Specs Compared
Fan Size
The Corsair iCUE Link LX140 RGB measures 140mm, while the Corsair RS120-R ARGB is a 120mm model. This size difference affects your case compatibility. A 140mm fan requires a larger mounting area than a 120mm fan. You must check your case specifications to see if it supports 140mm intakes or exhausts. Many mid-tower cases prioritize 120mm mounting points. The RS120-R fits into standard 120mm slots without issue. The LX140 needs dedicated 140mm spaces. Choose the RS120-R if your case only accepts smaller fans. Pick the LX140 if you have ample space and want the larger surface area for airflow.
Airflow
Airflow capacity differs significantly between these two units. The LX140 pushes up to 84.6 CFM at its maximum speed. The RS120-R delivers up to 65.8 CFM. This means the LX140 moves more air per minute. Higher airflow is useful for intake positions where you want to pull cool air into the case quickly. The RS120-R still provides solid airflow for general cooling. However, if you need maximum air movement for a densely packed build, the LX140 has the advantage. The larger blades on the 140mm model contribute to this higher volume. Consider your total case airflow needs when deciding which metric matters most for your specific hardware.
Static Pressure
Static pressure measures how well a fan can push air through obstructions like radiators or dust filters. The LX140 offers 4.82 mmH2O of static pressure. The RS120-R provides 2.81 mmH2O. The LX140 is better suited for high-resistance setups. If you plan to mount fans on a water cooling radiator, the higher static pressure helps maintain airflow. The RS120-R is adequate for standard radiator mounting but is less powerful in this regard. For intake fans with dust filters, the LX140 also handles the resistance better. If you are building a water-cooled system, the LX140 is the stronger choice for pushing air through tight spaces.
Lighting Type
The lighting technologies are not compatible with each other. The LX140 uses standard RGB with dual light loops and 18 LEDs per fan. It syncs via the iCUE Link hub. The RS120-R uses +5V ARGB with eight LEDs per fan. It connects directly to motherboard ARGB headers. You cannot mix these lighting types on the same control system easily. If your motherboard has a standard ARGB header, the RS120-R is the only option. If you already own an iCUE Link hub, the LX140 integrates seamlessly. The LX140 also has more LEDs and a different light distribution pattern. Choose based on your existing motherboard headers or hub setup.
Max Speed
Maximum rotational speed impacts both noise and cooling potential. The RS120-R can reach 2,100 RPM. The LX140 tops out at 2,000 RPM. The RS120-R spins slightly faster. This higher speed contributes to its airflow and static pressure capabilities relative to its size. However, higher RPMs often generate more noise. The LX140 operates at a slightly lower maximum speed but moves more air due to its larger blade area. The difference of 100 RPM is minor in practical terms. Both fans support PWM for precise speed control. You can lower the speed on either fan for quieter operation. The RS120-R has a slight edge in raw rotational potential.
Which Corsair Fan Should You Buy
You want high airflow and radiator mounting
The LX140 delivers 84.6 CFM of airflow and 4.82 mmH2O static pressure. This makes it ideal for cooling radiators or pushing air through dense filters. Its 140mm size moves more air than the 120mm RS120-R, providing superior cooling performance for high-heat components.
You need reverse rotor fans for intake lighting
The RS120-R features a reverse rotor design. This ensures the ARGB lighting remains visible when mounted as an intake fan. If you want aesthetic consistency on all fan positions, this model allows you to maintain a clean look without hiding the LEDs behind the frame.
You prefer motherboard ARGB control over hubs
The RS120-R connects directly to your motherboard’s +5V ARGB header. You do not need an additional system hub or bridge connectors. This simplifies your build by reducing cable clutter and relying on your existing motherboard lighting software for synchronization and customization.
The products compared
Corsair iCUE Link LX140 RGB 140mm Fan
Best for: 140mm mounts with iCUE Link Hub
- Fan Size
- 140mm
- Max Fan Speed
- 2000 RPM
- Max Airflow
- 84.6 CFM
- Static Pressure
- 4.82 mmH2O
- Bearing Type
- Magnetic Dome
- Lighting Type
- RGB
View on Amazon: Corsair iCUE Link LX140 RGB 140mm Fan Affiliate link
This is a 140mm Corsair fan with dual RGB light loops. It uses PWM control to reach 2,000 RPM for 84.6 CFM airflow. The Magnetic Dome bearing reduces friction and noise. AirGuide vanes direct airflow efficiently. You need an iCUE Link System Hub to connect it. It suits builds where you want strong cooling and customizable lighting.
Pros
- 140mm size with 84.6 CFM airflow
- Dual RGB light loops with 18 LEDs
- Magnetic Dome bearing for quiet operation
- AirGuide vanes for directed cooling
Cons
- Requires separate iCUE Link System Hub
- 140mm frame is bulkier than 120mm fans
- No included mounting screws for all chassis
Good fit if
- You have a case with 140mm fan mounts
- You already own an iCUE Link System Hub
- You want high static pressure for radiators
Skip if
- You only have 120mm fan spaces
- You do not have an iCUE Link Hub
- You prefer simple ARGB without PWM control
Verdict: Corsair iCUE Link LX140 RGB 140mm Fan fits users with 140mm mounts and an iCUE Link Hub who need high airflow and dual-loop lighting.
Corsair RS120-R ARGB 120mm Reverse Fan
Best for: intake mounts with motherboard ARGB control
- Fan Size
- 120mm
- Max Fan Speed
- 2100 RPM
- Max Airflow
- 65.8 CFM
- Static Pressure
- 2.81 mmH2O
- Connector Type
- PWM
- Bearing Type
- Magnetic Dome
View on Amazon: Corsair RS120-R ARGB 120mm Reverse Fan Affiliate link
The Corsair RS120-R ARGB fan uses a reverse rotor design to keep eight LEDs visible during intake mounting. It reaches 2,100 RPM for 65.8 CFM airflow and 2.81 mm H2O static pressure. Magnetic dome bearings support the PWM motor. This 120mm unit suits builds needing precise speed control and clear lighting visibility without requiring iCUE software.
Pros
- Reverse rotor keeps RGB LEDs visible on intake
- Max speed of 2,100 RPM for high airflow
- 2.81 mm H2O static pressure for radiators
- Magnetic dome bearings for smooth operation
Cons
- Requires motherboard +5V ARGB header
- No iCUE software control listed
- 120mm size limits airflow vs 140mm
Good fit if
- You need visible lighting on intake fans
- You prefer motherboard ARGB control
- You want high static pressure for radiators
Skip if
- You require iCUE software integration
- You need 140mm fans for higher airflow
- You want PWM speed control only
Verdict: Corsair RS120-R ARGB 120mm Reverse Fan delivers clear lighting and strong static pressure for users who control fans via motherboard headers.
Specifications side by side
| Spec | Corsair iCUE Link LX140 RGB 140mm Fan | Corsair RS120-R ARGB 120mm Reverse Fan |
|---|---|---|
| Fan Size | 140mm | 120mm |
| Max Fan Speed | 2000 RPM | 2100 RPM |
| Max Airflow | 84.6 CFM | 65.8 CFM |
| Static Pressure | 4.82 mmH2O | 2.81 mmH2O |
| Connector Type | not stated | PWM |
| Bearing Type | Magnetic Dome | Magnetic Dome |
| Lighting Type | RGB | +5V ARGB |
| Blade Direction | not stated | Reverse |
| Lighting | RGB | ARGB |
| Dimensions | 5.51 × 5.51 × 0.98 inches | 4.72 × 4.72 × 0.98 inches |
| Weight | 8.11 ounces | 1.19 pounds |
| Size | 1 x 140mm | 4.72 x 4.72 x 0.98 inches |
| Color | Black | White |
| Model | CO-9051027-WW | CO-9050197-WW |
Frequently asked questions
Does the Corsair iCUE Link LX140 RGB need a special hub?
Yes, this fan requires the Corsair iCUE Link Hub for operation. It connects via a proprietary magnetic cable rather than standard fan headers. You cannot plug it directly into a motherboard. This hub manages power and data for all compatible iCUE Link components in your build.
Can I control the RS120-R ARGB fan with motherboard software?
Yes, the RS120-R ARGB connects to standard motherboard headers. You control speed via PWM signals from your motherboard. The ARGB lighting also syncs with your motherboard’s 5V addressable header. This allows full customization without needing a separate controller or hub.
Is the LX140 RGB compatible with all PC cases?
No, the LX140 RGB measures 140mm, which is larger than standard 120mm fans. You need a case with 140mm mounting points. It fits well in cases designed for larger radiators or high-airflow intakes. Check your case specifications to ensure it supports 140mm dimensions before purchasing.
What is the difference between RGB and ARGB lighting?
RGB fans use four pins to cycle through colors simultaneously. ARGB fans use three pins to control individual LEDs for complex patterns. The LX140 uses standard RGB, while the RS120-R uses ARGB. Your motherboard must support the specific lighting type for full color control.
Which fan is better for a water cooling radiator?
The LX140 is better for radiators due to its 140mm size and high airflow. It moves more air across the fins. The RS120-R is a 120mm fan, which offers less surface area. Choose the LX140 if your case supports 140mm mounts and you prioritize maximum cooling performance.
Do both fans support speed control?
Yes, both fans support PWM speed control. The LX140 adjusts speed based on thermal data via the iCUE Link Hub. The RS120-R adjusts speed via your motherboard’s PWM header. This allows you to balance noise and performance dynamically in both setups.