Hardware Spec Index

Brontix FN-5681 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5681-PRIME · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index639 (Case Fans scale)
Category rank#35,107
Street price$19
Power4 W
Performance per dollar33.63
Released2025

Specifications

BrandBrontix
ModelBrontix FN-5681 Prime
Size140 × 140 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise28 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5681 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/10107178 (accessed 2026-10-23).