Hardware Spec Index

Brontix FN-4921 Pro 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4921-PRO · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index982 (Case Fans scale)
Category rank#46,430
Street price$29
Power4 W
Performance per dollar33.86
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4921 Pro
Size140 × 140 × 25 mm
Speed500–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4921 Pro 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/572532 (accessed 2026-10-26).