Hardware Spec Index

Brontix FN-4120 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4120-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index277 (Case Fans scale)
Category rank#21,253
Street price$9
Power3 W
Performance per dollar30.78
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4120 Ultra
Size120 × 120 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise26 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-3777 Ti 120mm PWM Case Fan (3-Pack)707$19Compare
Zephyra FN-6514 SE 140mm PWM Case Fan (3-Pack)265$9Compare
Teralux FN-2022 Max 120mm PWM Case Fan273$9Compare
Zephyra FN-3763 SE 120mm PWM ARGB Case Fan1,089$39Compare
Brontix FN-4322 Core 140mm PWM Case Fan (3-Pack)482$19Compare
Brontix FN-3541 Core 120mm PWM Case Fan485$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-4120 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/8330701 (accessed 2026-10-20).