Hardware Spec Index

Brontix FN-7821 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN7821-PRIME · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index640 (Case Fans scale)
Category rank#13,306
Street price$19
Power4 W
Performance per dollar33.68
Released2019

Specifications

BrandBrontix
ModelBrontix FN-7821 Prime
Size120 × 120 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-7821 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/79066813 (accessed 2026-10-26).