Hardware Spec Index

Brontix FN-9891 Prime 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN9891-PRIME · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index926 (Case Fans scale)
Category rank#14,798
Street price$29
Power3 W
Performance per dollar31.93
Released2025

Specifications

BrandBrontix
ModelBrontix FN-9891 Prime
Size140 × 140 × 25 mm
Speed300–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9891 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/17296170 (accessed 2026-10-21).