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
Black 120 by 38 mm PWM case fan with 4 pin connector

BGears

BGears b-BlasterPWM 120x38 case fan 38mm 1300-6500 RPM 318 CFM

SKU CH-8A2N-CRBYQ MPN b-BlasterPWM 120x38

A 120 mm case fan with 38 mm thickness moves up to 318 CFM at speeds from 1300 to 6500 RPM

  • Fan Counts1 Fan
  • TypeCase Fan
  • Fan Size120mm x 38mm
  • Fan Thickness38mm
  • Bearing Type2 Ball (Japanese ball bearing)
  • RPM1300 to 6500RPM±10%
  • Japanese dual ball bearing extends service life
  • 6500 RPM maximum speed pushes 318 CFM airflow
  • 38 mm thick frame fits high-static-pressure builds
  • PWM 4-pin control spans 1300 to 6500 RPM
  • Certified to UL, FCC, CE, RoHS, WEEE, REACH standards

High-Speed 120mm PWM Case Fan

The BGears b-BlasterPWM 120x38 is a single 120mm by 38mm case fan built for systems that demand very high airflow. It uses a Japanese dual ball bearing and a 4-pin PWM connector for automatic speed control via the motherboard.

30-Watt Power Draw at Peak Speed

Running at the top of its 1300 to 6500 RPM range, the fan draws 2.5 amps at 12 VDC for a total of 30 watts. The motherboard fan header must be rated to supply this current without tripping its protection circuit.

318 CFM Maximum Airflow

At 6500 RPM the fan moves 318 CFM while producing a noise level of 64 dBA. This output suits dense radiators or restricted chassis paths where static pressure matters more than silence.

Highlights

  • Japanese dual ball bearing extends service life
  • 6500 RPM maximum speed pushes 318 CFM airflow
  • 38 mm thick frame fits high-static-pressure builds
  • PWM 4-pin control spans 1300 to 6500 RPM
  • Certified to UL, FCC, CE, RoHS, WEEE, REACH standards

Specifications

BrandBgears
SeriesB-Blaster
Model120x38
Part Numberb-BlasterPWM 120x38
Fan Counts1 Fan
TypeCase Fan
Fan Size120mm x 38mm
Fan Thickness38mm
Bearing Type2 Ball (Japanese ball bearing)
RPM1300 to 6500RPM±10%
Air Flow318
Noise Level64
Power ConnectorMini 4 pin 4 wires
ColorBlack
Shipping weight0.13 kg
Package size130 × 130 × 39 mm

Questions about this item

Should I pick the 1300 RPM low end or the 6500 RPM high end for a radiator push-pull setup?

The fan runs from 1300 to 6500 RPM with PWM control, so the motherboard chooses speed based on temperature. At 6500 RPM it delivers 318 CFM at 64 dBA; at 1300 RPM airflow and noise drop proportionally.

What does the 318 CFM figure mean once the fan is mounted on a radiator?

318 CFM is the free-air maximum at 6500 RPM. On a radiator the static pressure of the 38 mm thick frame keeps flow higher than thinner fans, but actual airflow will be lower than the free-air rating.

The 4-pin PWM connector is standard, but what does the 2.5 A current draw cap in practice?

At 12 V the fan draws 2.5 A (30 W). Most motherboard headers are rated for 1 A, so you need a powered fan hub or a high-current header to run it at full speed.

Also in this aisle

People compared these

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