Squama 2503R Reverse Blade RGB PWM Fan 140mm - Performance & Silent

In this review the Squama 2503R Reverse Blade RGB PWM Fan 3-pack is judged as a strong choice for builders who want high airflow and customizable lighting without committing to loud, high-RPM fans. The set is best for system builders using case intake, radiator cooling or CPU coolers where a balance of performance and quiet operation matters. The single biggest reason to buy is the combination of a reversed blade design and a patented Squama particle frame that aims to boost airflow and pressure while diminishing turbulent noise.

Key Features

• Reversed blade design: Allows the fan to act as an intake with the front view, offering flexible mounting orientation for targeted airflow.
• Performance & Silent Balance: Delivers up to 91.15 CFM and 2.63 mm H2O while keeping noise under sensible levels for mixed performance and quiet use.
• Squama particle patent: Textured frame elements reduce turbulent flow noise and improve airflow and static pressure efficiency around the fan edges.
• 4-pin PWM control: Fan speed is adjustable from about 800 to 2400 rpm, letting users tune for silence or maximum cooling on demand.
• ARGB dual light loop: Two concentric addressable RGB rings sync with supported motherboards for individually customizable lighting effects.
• Versatile cooling roles: Sized at 140mm and built for case or radiator duty, it suits both chassis airflow and water-cooling radiators.

Who It's For

This 3-pack is aimed at PC builders who need substantive air movement-gamers, content creators and overclockers who pair mid to high TDP components with radiators or tight case layouts. The fans suit users who want visible RGB lighting and motherboard sync while retaining PWM control for quieter idle operation.

People who favor ultra-quiet passive systems or who require very long cables and prebuilt fan hubs should look elsewhere; the package invites some compromise between peak performance and sound level and customer reports note mixed views on noise and cable length.

Pros & Cons

Pros

• High measured airflow and static pressure suitable for radiators and intake duties.
• Dual ARGB light rings provide a vivid aesthetic and sync with addressable RGB headers.
• Patented Squama particle frame reduces turbulence and can improve acoustic performance compared with plain frames.
• PWM control gives a wide rpm range for tuning performance versus noise.

Cons

• Noise is mixed in real use; at higher rpm the fans can be noticeably loud for users sensitive to sound.
• Cable length and connector arrangements may require a hub or splitter in some builds.

Specifications

Fan size	140mm
Airflow	91.15 CFM
Static pressure	2.63 mm H2O
Speed control	4-pin PWM, 800-2400 rpm
Noise level	Max. 34 dB(A)
Lighting	5V 3-pin addressable RGB, dual light loop
Pack	3 fans (black)

Our Verdict

The Squama 2503R 140mm 3-pack is a solid pick for builders who want strong airflow and eye-catching ARGB lighting while retaining PWM control for quieter periods. Its patented frame and reversed blade design make it especially useful on radiators and intake positions, and it represents good value for users willing to manage cable routing and tolerate higher noise at maximum rpm.

Frequently Asked Questions

Can these fans be used on radiators?
Yes. The 140mm size with 2.63 mm H2O static pressure and a reversed blade design makes them suitable for radiator mounting and tight airflow scenarios.

Will the RGB sync with my motherboard?
The fans use a 5V 3-pin addressable RGB connector and can synchronize lighting effects with compatible motherboards and controllers.

Are they quiet at idle?
At lower PWM speeds they are reasonably quiet, but customers report mixed noise impressions when the fans run at higher rpm near their 2400 rpm limit.