Hardware Spec Index

Brontix FN-6840 XT 140mm PWM Case Fan

Case Fans · Brontix · SKU FN6840-XT · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index721 (Case Fans scale)
Category rank#47,897
Street price$19
Power4 W
Performance per dollar37.95
Released2022

Specifications

BrandBrontix
ModelBrontix FN-6840 XT
Size140 × 140 × 25 mm
Speed500–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6840 XT 140mm PWM Case Fan”, https://vextor7.com/item/7360951 (accessed 2026-10-22).