Hardware Spec Index

Brontix FN-9891 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN9891-PRO · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index819 (Case Fans scale)
Category rank#10,590
Street price$29
Power3 W
Performance per dollar28.24
Released2020

Specifications

BrandBrontix
ModelBrontix FN-9891 Pro
Size120 × 120 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise26 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-9861 Prime 120mm PWM ARGB Case Fan (3-Pack)967$29Compare
Caldera FN-1699 Edge 120mm PWM Case Fan (3-Pack)459$19Compare
Zephyra FN-7224 Core 120mm PWM ARGB Case Fan1,023$29Compare
Caldera FN-4511 Ti 120mm PWM ARGB Case Fan (3-Pack)1,197$49Compare
Brontix FN-9478 Core 140mm PWM ARGB Case Fan964$29Compare
Zephyra FN-4495 Ti 120mm PWM Case Fan368$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-9891 Pro 120mm PWM Case Fan”, https://vextor7.com/item/5453932 (accessed 2026-10-21).