Hardware Spec Index

Brontix FN-3685 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3685-PRIME · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index686 (Case Fans scale)
Category rank#42,431
Street price$19
Power3 W
Performance per dollar36.11
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3685 Prime
Size140 × 140 × 25 mm
Speed500–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-4819 Plus 120mm PWM Case Fan506$19Compare
Zephyra FN-9793 Ultra 120mm PWM ARGB Case Fan1,379$49Compare
Corvane FN-6341 Ultra 120mm PWM ARGB Case Fan (3-Pack)1,157$39Compare
Brontix FN-1070 Ti 120mm PWM Case Fan (3-Pack)527$19Compare
Caldera FN-6505 Edge 140mm PWM ARGB Case Fan1,033$29Compare
Zephyra FN-3311 SE 140mm PWM Case Fan282$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-3685 Prime 140mm PWM Case Fan”, https://vextor7.com/item/5988976 (accessed 2026-10-22).