Hardware Spec Index

Brontix FN-3685 Prime 120mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3685-PRIME · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index970 (Case Fans scale)
Category rank#11,734
Street price$29
Power3 W
Performance per dollar33.45
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3685 Prime
Size120 × 120 × 25 mm
Speed500–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-3208 Max 140mm PWM Case Fan228$9Compare
Brontix FN-6174 Max 120mm PWM ARGB Case Fan861$29Compare
Zephyra FN-8152 XT 120mm PWM ARGB Case Fan835$29Compare
Teralux FN-1572 Pro 140mm PWM ARGB Case Fan1,150$39Compare
Zephyra FN-5934 Prime 120mm PWM ARGB Case Fan1,351$49Compare
Zephyra FN-8907 Ultra 120mm PWM Case Fan (3-Pack)539$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-3685 Prime 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/89175483 (accessed 2026-10-19).