Hardware Spec Index

Brontix FN-3924 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3924-ULTRA · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index574 (Case Fans scale)
Category rank#48,146
Street price$19
Power3 W
Performance per dollar30.21
Released2019

Specifications

BrandBrontix
ModelBrontix FN-3924 Ultra
Size120 × 120 × 25 mm
Speed200–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 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
Corvane FN-4633 Prime 140mm PWM ARGB Case Fan1,287$39Compare
Zephyra FN-7644 Prime 140mm PWM ARGB Case Fan1,272$49Compare
Caldera FN-1078 Core 140mm PWM Case Fan441$19Compare
Brontix FN-5049 Ultra 140mm PWM Case Fan260$9Compare
Caldera FN-2978 Plus 120mm PWM Case Fan (3-Pack)528$19Compare
Zephyra FN-9946 Ti 120mm PWM Case Fan439$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-3924 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/85532613 (accessed 2026-10-21).