Hardware Spec Index

Brontix FN-3856 XT 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3856-XT · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index744 (Case Fans scale)
Category rank#39,163
Street price$19
Power4 W
Performance per dollar39.16
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3856 XT
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-9782 Core 140mm PWM Case Fan579$19Compare
Zephyra FN-8895 Ultra 140mm PWM ARGB Case Fan (3-Pack)1,049$39Compare
Caldera FN-6068 XT 120mm PWM ARGB Case Fan (3-Pack)1,070$29Compare
Corvane FN-4032 Core 120mm PWM Case Fan (3-Pack)686$19Compare
Teralux FN-4556 Core 120mm PWM Case Fan436$19Compare
Teralux FN-6397 Pro 120mm PWM Case Fan (3-Pack)638$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-3856 XT 140mm PWM Case Fan”, https://vextor7.com/item/37528972 (accessed 2026-10-23).