Corsair
CORSAIR RS140 140mm PWM Fans – Daisy-Chain Connection – Low-Noise – Magnetic Dome Bearing – Dual Pack – White
Bottom line: The CORSAIR RS140 140mm PWM Fans ($19.99 on Amazon as of 2026-10-06): Daisy-chain wiring runs both fans off one 4-pin PWM motherboard header; main trade-off: no RGB lighting — plain white frame only.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Daisy-chain wiring runs both fans off one 4-pin PWM motherboard header
- ✓ 3.46mm-H2O static pressure handles radiators and dense heatsink fins
- ✓ 95.5 CFM peak airflow at 1,700 RPM from a 140mm frame
- ✓ Zero RPM mode stops the fans entirely for a silent idle
Cons
- ✗ No RGB lighting — plain white frame only
- ✗ Magnetic Dome bearing, not the longer-spec maglev used on Corsair's RX line
- ✗ White frames show dust faster than black equivalents
- ✗ Two-pack only, so odd fan counts mean buying a spare pair
Manufacturer description
The CORSAIR RS140 dual pack gives you two 140mm PWM fans built around one idea: fewer cables, more airflow. Daisy-chain connectors let you link both fans (and more RS fans down the line) into a single 4-pin PWM header, so a full intake wall no longer eats every fan port on your motherboard. Each RS140 spins up to 1,700 RPM and moves up to 95.5 CFM, with 3.46mm-H2O of static pressure — enough push to work as a radiator or heatsink fan rather than just a case-flow fan. Corsair's AirGuide anti-vortex vanes focus the airstream instead of letting it spread, aiming concentrated cooling at your…
SpecPicks Verdict
SpecPicks scored CORSAIR RS140 140mm PWM Fans using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. Corsair's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
How many RS140 fans can I daisy-chain together?
Corsair lists daisy-chaining multiple RS fans through a single 4-pin PWM connector, but does not publish a maximum count here. Check the product listing or your motherboard header's amperage rating before chaining a long run.
Are these good radiator fans or just case fans?
Both. The RS140 puts out 3.46mm-H2O of static pressure, which Corsair specifically calls out for pushing air through radiator fins, and AirGuide vanes are designed for radiator and heatsink mounting.
How loud are they at full speed?
Corsair does not publish a dBA figure in this listing. The Magnetic Dome bearing is designed to reduce friction noise, and Zero RPM mode stops the blades entirely at low load. Check the product listing for the full acoustic spec.
What airflow and RPM do I actually get?
Up to 1,700 RPM and up to 95.5 CFM per fan. PWM control lets your motherboard scale both down, so real-world figures depend on your fan curve.
Do I get two fans for the price, and are they worth it?
This is a dual pack of two 140mm fans. Pricing changes often, so check the current listing. Buyer sentiment is strong for the airflow and single-header wiring.
Key Features
- Streamlined Fan Connections: Daisy-chain multiple fans together and control them all through just a single 4-pin PWM connector.
- Precise PWM Speeds: Set your fan speeds up to 1,700 RPM while providing up to 95.5 CFM airflow to your system.
- CORSAIR AirGuide Technology: Anti-vortex vanes direct airflow at your hottest components for concentrated cooling, pushing air in the direction you need when mounted to a radiator or heatsink.
- High Static Pressure: RS fans work well as radiator fans with a static pressure of 3.46mm-H2O to push through obstructions.
- Quiet Operation with Magnetic Dome Bearing: CORSAIR’s Magnetic Dome bearing minimises noise and reduces friction for greater longevity.
Full Specifications
| Brand | Corsair |
|---|---|
| Color | White |
| Model | CO-9050195-WW |
| Voltage | 12 Volts |
| Wattage | 5.4 watts |
| Material | Copper |
| Unit Count | 2.0 Count |
| Noise Level | 36 Decibels |
| Part Number | CO-9050195-WW |
| Material Type | Copper |
| Cooling Method | Fan |
| Number of Items | 1 |
| Air Flow Capacity | 95.5 Cubic Feet Per Minute |
| Compatible Devices | Radiator |
| Precise PWM Speeds | Set your fan speeds up to 1,700 RPM while providing up to 95.5 CFM airflow to your system. |
| High Static Pressure | RS fans work well as radiator fans with a static pressure of 3.46mm-H2O to push through obstructions. |
| Power Connector Type | 4-Pin |
| Warranty Description | 5 Year Manufacturer |
| Maximum Rotational Speed | 1700 RPM |
| Item Dimensions L x W x H | 5.51"L x 5.51"W x 0.98"H |
Ready to buy?
CORSAIR RS140 140mm PWM Fans – Daisy-Chain Connection – Low-Noise – Magnetic Dome Bearing – Dual Pack – White is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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