We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • TypeCase Fan
  • Fan Size90mm
  • Bearing Type4 Pin PWM Fan
  • Air Flow40-45 CFM
  • 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.

Highlights

  • 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

Specifications

Brandsnowman
TypeCase Fan
Fan Size90mm
Bearing Type4 Pin PWM Fan
Air Flow40-45 CFM
ColorRed

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

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.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.