Hardware Spec Index

Brontix FN-6840 Prime 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN6840-PRIME · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index927 (Case Fans scale)
Category rank#27,035
Street price$29
Power4 W
Performance per dollar31.97
Released2024

Specifications

BrandBrontix
ModelBrontix FN-6840 Prime
Size140 × 140 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise26 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-6327 Ultra 120mm PWM Case Fan316$9Compare
Zephyra FN-7541 Core 140mm PWM ARGB Case Fan1,284$49Compare
Zephyra FN-5630 Plus 120mm PWM ARGB Case Fan1,038$29Compare
Brontix FN-9816 Ultra 120mm PWM Case Fan227$9Compare
Teralux FN-4699 Prime 140mm PWM ARGB Case Fan968$29Compare
Corvane FN-4106 Edge 120mm PWM ARGB Case Fan879$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-6840 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/2749042 (accessed 2026-10-23).