Hardware Spec Index

Brontix FN-8991 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN8991-ULTRA · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index568 (Case Fans scale)
Category rank#9,484
Street price$19
Power4 W
Performance per dollar29.89
Released2025

Specifications

BrandBrontix
ModelBrontix FN-8991 Ultra
Size120 × 120 × 25 mm
Speed200–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-4537 Edge 120mm PWM Case Fan (3-Pack)559$19Compare
Brontix FN-9039 Ultra 140mm PWM ARGB Case Fan1,162$39Compare
Zephyra FN-9299 Ti 120mm PWM Case Fan740$19Compare
Corvane FN-5921 SE 140mm PWM ARGB Case Fan1,121$29Compare
Zephyra FN-2187 Ti 120mm PWM Case Fan529$19Compare
Caldera FN-5077 SE 120mm PWM ARGB Case Fan1,357$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-8991 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/50359507 (accessed 2026-10-26).