Hardware Spec Index

Brontix FN-5631 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5631-PRIME · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index413 (Case Fans scale)
Category rank#7,689
Street price$19
Power4 W
Performance per dollar21.74
Released2021

Specifications

BrandBrontix
ModelBrontix FN-5631 Prime
Size120 × 120 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5631 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7919481 (accessed 2026-10-20).