CORSAIR PWM fans, RS140

The daisy-chain connection is the standout feature of CORSAIR’s RS140 ARGB fans: connect multiple fans using one 4-pin PWM connector and one +5V ARGB connector, rather than running separate connections from each fan. This dual pack is designed for a build where tidy wiring and adjustable lighting matter alongside cooling. Each fan has eight LEDs, with lighting controlled through a compatible motherboard’s built-in ARGB system. Keep in mind that motherboard compatibility is required for the lighting control, so the ARGB connection is worth checking against your board before buying.

What to know

PWM speed control lets the fans run at up to 1,700 RPM, with airflow rated up to 95.5 CFM. CORSAIR’s AirGuide design uses anti-vortex vanes to direct air towards components that need cooling, and the stated static pressure of 3.46mm-H2O makes these fans suitable for radiator use as well as general case airflow. That combination points to a more directed cooling approach than simply adding a fan for broad circulation: it may be useful when airflow needs to pass through a radiator or heatsink.

The listing also specifies a magnetic dome bearing and low-noise design, but it does not provide a noise figure. If quiet operation is your main deciding factor, there is no numerical noise level here to compare with other fans. The lighting is another practical consideration: it is customisable through compatible motherboard ARGB control, rather than described as operating independently.

Best use cases

These are a sensible fit for a PC build that needs two 140 mm fans and could benefit from PWM speed adjustment, directed airflow, or radiator compatibility. For example, when installing both fans near a radiator, the AirGuide vanes are intended to concentrate airflow towards the cooling surface instead of letting it spread as broadly through the case. The daisy-chain setup can also make cable routing less busy when several fans are installed together.

It’s a good fit if you want ARGB lighting and would rather manage linked fans through a shared PWM and ARGB connection. It may not be the best fit if your motherboard lacks a compatible +5V ARGB connection, or if your priority is a published noise rating to compare before choosing. A simpler, non-illuminated fan may suit a build where lighting and motherboard-based ARGB control are not useful priorities.

Tips for day-to-day use

Use PWM control to adjust fan speed to your system’s needs rather than assuming the maximum setting is necessary all the time. The listed ceiling is 1,700 RPM, actual settings depend on how you configure fan control. When planning the installation, account for the shared 4-pin PWM and +5V ARGB connections, and make sure the motherboard supports the lighting connection. That helps avoid buying for an ARGB effect you cannot control as intended.

The product information does not give dimensions beyond the 140 mm fan size, nor does it state a measured noise level. If your case or radiator has tight clearance requirements, confirm the relevant fit details for your build before settling on these fans. The airflow and static-pressure figures are useful indicators of intended performance, but they do not replace checking the physical space and connection requirements.

Before you decide

How many fans are included? The product is a dual pack, so it contains two fans.

Can the lighting be customised? Yes, through a compatible motherboard’s built-in ARGB control. Each fan has eight LEDs, and the lighting requires compatible motherboard support.

Are they intended for radiator use? Yes. The stated static pressure and AirGuide airflow direction are presented for use with radiators or heatsinks as well as other cooling setups.

Is it worth it?

Choose the RS140 ARGB dual pack if you want two PWM-controlled 140 mm fans, motherboard-managed lighting, and a connection approach intended to reduce cable clutter. Its directed airflow and radiator suitability give it a clearer purpose than a basic case fan bought only to move air around. The trade-off is that lighting depends on compatible +5V ARGB motherboard control, and the supplied details do not include a numerical noise rating. If those limitations match your build plans, the features are relevant, if you need independently controlled lighting or a documented noise figure, look for those details before choosing.