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Red 90mm square PWM case fan with transparent blades and black frame

SXDOOL

SXDOOL 90mm PWM Case Fan Red 40-45 CFM

SKU CH-RSQK-62H6W

A 90mm PWM case fan delivering 40-45 CFM airflow with a hydraulic bearing and fixed red illumination

  • Fan size90 mm
  • Bearing design4 Pin PWM Fan
  • Airflow rate40-45 CFM
  • Product typeCase Fan
  • Product colorRed

Color Red

  • PWM control adjusts speed from 800 to 1800 RPM
  • Hydraulic bearing runs at 15-25 dBA for quiet operation
  • Delivers 40-45 CFM airflow for effective case cooling
  • Fixed red LED adds colour without extra wiring
  • Rated 50000 hours life for long-term reliability

90mm PWM case fan for compact builds

This 90mm fan fits standard 90mm chassis mounts and can replace a 90mm radiator fan. It runs on 12V DC power through a four-pin PWM connector so the motherboard can control speed automatically. The red frame adds a fixed colour accent without addressable lighting.

Straightforward screw mounting with PWM control

Each unit ships with four fixing screws that line up with the usual 90mm hole pattern. Installation is a matter of aligning the holes, tightening the screws and plugging the four-pin header into a PWM fan header on the board. The only common issue is forgetting to set the fan curve in BIOS, which can leave the fan idling at minimum speed under load.

40 to 45 CFM airflow at 15 to 25 dBA

The hydraulic bearing spins between 800 and 1800 RPM to deliver 40 to 45 CFM while keeping noise between 15 and 25 dBA. That output suits small-form-factor cases or radiator replacements where space is limited. Builders who need higher static pressure or greater airflow for larger enclosures should look elsewhere.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $31.99
Pricier than about 78% of the 8,339 comparable items (median $19.99).
Fan size 90 mm
Lower than about 70% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Brand nameSnowman
Product typeCase Fan
Product colorRed
Performance
Airflow rate40-45 CFM
Size & build
Fan size90 mm
Bearing design4 Pin PWM Fan

Other versions of this model

1 more in the same range

Questions about this item

How can I confirm the fan is running at the correct speed after connecting it to the motherboard?

The fan spins between 800 and 1800 RPM. Enter the BIOS or use monitoring software to verify the reported speed falls within this range while the PWM signal adjusts it.

What components are included in the package for installation?

The box contains one 90mm fan and four fixing screws. The unit draws 0.23 A at 12 V DC through its 4-pin connector; no extra cables are included.

The specifications list 35–45 CFM airflow and 15–25 dBA noise; how do I decide which setting suits my build?

At full 1800 RPM the fan delivers up to 45 CFM at 25 dBA. Lower PWM duty cycles reduce both airflow and noise toward 35 CFM and 15 dBA, so choose a curve that balances cooling needs with acoustic preference.

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