Hardware Spec Index

Brontix FN-4257 Ultra 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4257-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index1,326 (Case Fans scale)
Category rank#40,911
Street price$49
Power3 W
Performance per dollar27.06
Released2020

Specifications

BrandBrontix
ModelBrontix FN-4257 Ultra
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-7877 Pro 120mm PWM ARGB Case Fan (3-Pack)1,256$49Compare
Corvane FN-9735 Core 120mm PWM ARGB Case Fan1,111$29Compare
Zephyra FN-7989 Pro 140mm PWM Case Fan (3-Pack)689$19Compare
Zephyra FN-1736 Ti 120mm PWM ARGB Case Fan1,033$39Compare
Teralux FN-1560 XT 140mm PWM ARGB Case Fan900$29Compare
Zephyra FN-2180 Prime 120mm PWM ARGB Case Fan1,086$39Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-4257 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/9436615 (accessed 2026-10-19).