Hardware Spec Index

Brontix FN-5689 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5689-PRIME · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index578 (Case Fans scale)
Category rank#13,830
Street price$19
Power3 W
Performance per dollar30.42
Released2021

Specifications

BrandBrontix
ModelBrontix FN-5689 Prime
Size140 × 140 × 25 mm
Speed500–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise32 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
Caldera FN-6688 Ti 140mm PWM ARGB Case Fan947$39Compare
Caldera FN-5848 Ti 120mm PWM Case Fan269$9Compare
Zephyra FN-3615 Max 140mm PWM Case Fan498$19Compare
Brontix FN-8436 SE 120mm PWM Case Fan (3-Pack)450$19Compare
Teralux FN-1571 Prime 120mm PWM Case Fan413$19Compare
Teralux FN-6122 Prime 140mm PWM Case Fan592$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-5689 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7922121 (accessed 2026-10-22).