BGears b-BlasterPWM 140 140mm 2 Ball PWM 600-3000 RPM 168 CFM case fan

140 mm PWM case fan for high-airflow builds

The BGears b-BlasterPWM 140 is a 140 mm case fan built around a dual-ball bearing and a four-pin PWM interface. It targets builders who need strong airflow through radiators, mesh panels or restrictive chassis layouts. The 12 VDC motor draws 1.0 A at 12 W, giving headroom for sustained high-speed operation. It suits enthusiasts who prefer manual or software fan curves over fixed-voltage designs.

Dual-ball bearing and 25 mm frame depth

The 2 Ball bearing reduces friction compared with sleeve alternatives, supporting a wide 600 to 3000 RPM range with a ±10 % tolerance. A standard 140x140x25 mm frame fits most modern mid-tower and full-tower mounts without adapter brackets. The four-wire PWM connector allows motherboard or controller speed regulation down to low idle speeds. No LED lighting keeps the visual profile neutral for windowed or stealth builds.

168 CFM maximum airflow at 3000 RPM

At full speed the fan moves 168 CFM while generating up to 7.0 mmH₂O static pressure, a combination that clears dense fin stacks and dust filters. At zero static pressure the PWM mode still delivers 28.2 CFM, and at zero flow it holds 1.4 mmH₂O. Buyers who need silent sub-600 RPM operation or lower peak airflow for noise-sensitive environments should look elsewhere.