Hardware Spec Index

Brontix FN-4903 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4903-PRO · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index249 (Case Fans scale)
Category rank#25,087
Street price$9
Power3 W
Performance per dollar27.67
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4903 Pro
Size120 × 120 × 25 mm
Speed500–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-4131 Ti 120mm PWM Case Fan505$19Compare
Teralux FN-2381 Pro 140mm PWM Case Fan382$19Compare
Caldera FN-2751 Max 140mm PWM Case Fan366$9Compare
Caldera FN-9789 Ultra 140mm PWM ARGB Case Fan912$29Compare
Brontix FN-4444 SE 140mm PWM ARGB Case Fan (3-Pack)1,057$29Compare
Brontix FN-1241 Core 140mm PWM Case Fan (3-Pack)770$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-4903 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4242853 (accessed 2026-10-19).