Hardware Spec Index

Brontix FN-3866 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3866-PRO · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index711 (Case Fans scale)
Category rank#40,812
Street price$19
Power3 W
Performance per dollar37.42
Released2022

Specifications

BrandBrontix
ModelBrontix FN-3866 Pro
Size120 × 120 × 25 mm
Speed200–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise31 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-4691 SE 120mm PWM ARGB Case Fan (3-Pack)949$29Compare
Brontix FN-1256 Ti 140mm PWM ARGB Case Fan1,379$49Compare
Zephyra FN-6081 Plus 120mm PWM ARGB Case Fan1,097$29Compare
Brontix FN-2044 Ti 120mm PWM Case Fan815$29Compare
Corvane FN-7242 Pro 140mm PWM ARGB Case Fan1,025$29Compare
Teralux FN-7724 Core 140mm PWM Case Fan (3-Pack)759$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-3866 Pro 120mm PWM Case Fan”, https://vextor7.com/item/31362871 (accessed 2026-10-25).