Hardware Spec Index

Brontix FN-6851 Core 140mm PWM Case Fan

Case Fans · Brontix · SKU FN6851-CORE · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index254 (Case Fans scale)
Category rank#30,429
Street price$9
Power4 W
Performance per dollar28.22
Released2023

Specifications

BrandBrontix
ModelBrontix FN-6851 Core
Size140 × 140 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-2691 Pro 120mm PWM Case Fan (3-Pack)355$9Compare
Teralux FN-9309 Ti 120mm PWM ARGB Case Fan (3-Pack)927$29Compare
Brontix FN-4372 SE 140mm PWM Case Fan (3-Pack)458$19Compare
Zephyra FN-6715 Max 120mm PWM ARGB Case Fan1,002$29Compare
Brontix FN-1161 Max 120mm PWM Case Fan652$19Compare
Teralux FN-4526 Ultra 140mm PWM ARGB Case Fan968$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-6851 Core 140mm PWM Case Fan”, https://vextor7.com/item/7091644 (accessed 2026-10-22).