Hardware Spec Index

Brontix FN-3821 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3821-PRIME · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index361 (Case Fans scale)
Category rank#31,640
Street price$9
Power4 W
Performance per dollar40.11
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3821 Prime
Size140 × 140 × 25 mm
Speed500–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3821 Prime 140mm PWM Case Fan”, https://vextor7.com/item/8991298 (accessed 2026-10-21).