Hardware Spec Index

Brontix FN-7705 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN7705-ULTRA · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index454 (Case Fans scale)
Category rank#12,947
Street price$9
Power3 W
Performance per dollar50.44
Released2023

Specifications

BrandBrontix
ModelBrontix FN-7705 Ultra
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise28 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-7705 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/19973740 (accessed 2026-10-20).