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Black 90mm square case fan 38mm thick with 4-pin PWM connector

BGears

BGears b-BlasterPWM 90x38 case fan

SKU CH-WP7A-W3FJY MPN b-BlasterPWM 90x38

A 90 mm case fan with 38 mm thickness, PWM speed control from 500 to 5000 RPM and 10.4 to 128 CFM airflow, using Japanese dual-ball bearings

  • Fan size90 mm
  • Number of fans1 Fan
  • Fan depth38 mm
  • Bearing design2 Ball (Japanese ball bearing)
  • Rotational speed500 to 5,000 RPM
  • Airflow rate10.4 to 128 CFM
  • Precise cooling on demand with 500 to 5000 RPM PWM control
  • Massive airflow up to 318 CFM for high-performance thermal needs
  • Japanese dual ball bearing ensures stability and extended lifespan at high speed
  • 38 mm thick 90 mm frame delivers up to 17.16 mmH2O static pressure
  • Non-LED black design keeps builds clean while meeting UL, FCC, CE, RoHS, WEEE, REACH standards

90 mm 38 mm High-Speed PWM Fan

The BGears b-BlasterPWM 90x38 is a 90 mm case fan with a 38 mm thick frame. It uses a Japanese dual-ball bearing and a 4-pin PWM connector for automatic speed control. The unit ships without any LED lighting.

Suited for Tight High-Pressure Cooling

Builders who need strong static pressure in a 90 mm mount will benefit from the 0.17 to 17.16 mmH2O range. Buyers who need a slimmer frame or lower maximum noise should look at other models.

500 to 5000 RPM Speed Range Decides Fit

The wide 500 to 5000 RPM span lets the fan drop to 10.4 CFM for quiet idling or reach 128 CFM under load. Match this range to your thermal curve to decide if the part fits.

How it compares

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

Price $16.99
Cheaper than about 60% 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 nameBgears
Model nameb-BlasterPWM 90 × 38
Product typeCase Fan
Product colorBlack
Performance
Rotational speed500 to 5,000 RPM
Airflow rate10.4 to 128 CFM
Air pressure rating0.17 to 17.16mmH20
Power
Power input connector4-pin PWM
Size & build
Fan size90 mm
Number of fans1 Fan
Fan depth38 mm
Bearing design2 Ball (Japanese ball bearing)
Product dimensions90 × 90 × 38 mm
Shipping weight0.25 kg
Package size120 × 120 × 60 mm
Compatibility
Compatible withCase
Environment & compliance
Operating noise57.2 dBA
More details
LED lightingNon-LED

Questions about this item

Will the 90 mm by 38 mm frame fit my case's 90 mm mounting holes?

The fan measures exactly 90 x 90 x 38 mm, matching the standard 90 mm hole pattern used on most cases.

How do I connect the 4-pin PWM connector so the motherboard controls speed from 500 to 5000 RPM?

Plug the 4-pin PWM header into a CPU or chassis fan header on the motherboard; the fourth wire carries the PWM signal for automatic speed control.

When should I expect to replace the Japanese 2 ball bearing?

The dual ball bearing is rated for extended lifespan at high speed; replace only if noise rises above the rated 57.2 dBA or rotation becomes uneven.

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