Hardware Spec Index

Brontix FN-5811 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN5811-ULTRA · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index239 (Case Fans scale)
Category rank#35,904
Street price$9
Power3 W
Performance per dollar26.56
Released2020

Specifications

BrandBrontix
ModelBrontix FN-5811 Ultra
Size120 × 120 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-2570 Edge 120mm PWM Case Fan666$19Compare
Teralux FN-3176 Ti 120mm PWM Case Fan562$19Compare
Brontix FN-4694 Pro 120mm PWM Case Fan443$19Compare
Corvane FN-1047 XT 120mm PWM ARGB Case Fan1,156$39Compare
Zephyra FN-3627 Core 140mm PWM Case Fan (3-Pack)447$9Compare
Teralux FN-6559 Prime 120mm PWM Case Fan630$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-5811 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/2277446 (accessed 2026-10-23).