Hardware Spec Index

Brontix FN-7857 Prime 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN7857-PRIME · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index1,306 (Case Fans scale)
Category rank#28,498
Street price$49
Power3 W
Performance per dollar26.65
Released2021

Specifications

BrandBrontix
ModelBrontix FN-7857 Prime
Size140 × 140 × 25 mm
Speed500–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-7857 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/7224327 (accessed 2026-10-21).