Hardware Spec Index

Brontix FN-5991 Prime 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN5991-PRIME · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index849 (Case Fans scale)
Category rank#47,412
Street price$29
Power3 W
Performance per dollar29.28
Released2020

Specifications

BrandBrontix
ModelBrontix FN-5991 Prime
Size140 × 140 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise26 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5991 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/3845902 (accessed 2026-10-20).