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Black 140mm square case fan with white bionic loop rotor, 29mm thick

Blacknoise

Blacknoise NB-eLoop B14-3 140mm Case Fan

SKU CH-BGYG-39RAT

A 140mm case fan with a bionic loop rotor delivering 104.93 CFM airflow at 1400 RPM while producing 28.5 dBA noise

  • Fan size140 mm
  • Bearing designNANO-SLI
  • Rotational speed1,400 RPM
  • Airflow rate104.93 CFM
  • Operating noise28.5 dBA
  • Power input connector3 Pin
  • Bionic loop rotor cuts air-stream noise to 28.5 dBA
  • 1400 RPM delivers 104.93 CFM for strong case airflow
  • Nano-SLI magnetic bearing runs in any orientation without wear
  • Anti-dust Makrolon rotor and sealed motor resist particle build-up
  • 140 mm square frame fits standard mounts at 29 mm depth

Quiet 140 mm case fan

The Blacknoise NB-eLoop B14-3 is a 140 mm case fan built around a bionic loop rotor that reduces air-stream noise. It runs at 1400 RPM and produces 28.5 dBA while moving 104.93 CFM of air. The NANO-SLI magnetic bearing is position-invariant and dust-protected for long life.

Bionic loop rotor airflow

The defining specification is the bionic loop rotor design, which delivers higher cooling power at the same revolution rate compared with conventional axial fans. This geometry cuts turbulence so the fan achieves 104.93 CFM at 1400 RPM with only 28.5 dBA. Builders who need that balance of airflow and quiet operation should choose this model.

Radiator and chassis headroom

At 140 mm by 140 mm by 29 mm the fan fits standard 140 mm mounts on cases, CPU coolers and radiators. It comfortably handles typical chassis exhaust or radiator push-pull duties at moderate speeds. It runs out of headroom in builds that demand extreme static pressure or significantly higher airflow than 104.93 CFM.

How it compares

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

Price $26.99
Pricier than about 68% of the 8,339 comparable items (median $19.99).
Fan size 140 mm
Higher than about 80% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Product typeCase Fan
Product colorBlack / White
Performance
Rotational speed1,400 RPM
Airflow rate104.93 CFM
Power
Power input connector3 Pin
Size & build
Fan size140 mm
Bearing designNANO-SLI
Environment & compliance
Operating noise28.5 dBA
More details
LED lightingNon-LED

Questions about this item

What does 1400 RPM mean for airflow in a real build?

At 1400 RPM the fan moves 104.93 CFM, providing strong cooling for cases, CPU coolers or radiators while keeping noise at 28.5 dBA.

How does the 3-pin connector limit speed control?

The 3-pin connector allows voltage-based speed control from the motherboard, so fan speed varies with voltage but PWM precision is not available.

Will the 29 mm depth fit my chassis or radiator?

The frame measures 140 mm by 140 mm by 29 mm, so verify your case or radiator has at least 29 mm clearance for this thickness.

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