Hardware Spec Index

Brontix FN-5756 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN5756-ULTRA · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index599 (Case Fans scale)
Category rank#27,836
Street price$19
Power4 W
Performance per dollar31.53
Released2026

Specifications

BrandBrontix
ModelBrontix FN-5756 Ultra
Size140 × 140 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-1874 SE 140mm PWM Case Fan (3-Pack)578$19Compare
Zephyra FN-9729 Prime 120mm PWM ARGB Case Fan (3-Pack)977$29Compare
Caldera FN-6546 XT 120mm PWM ARGB Case Fan (3-Pack)1,297$49Compare
Teralux FN-5511 Pro 120mm PWM Case Fan677$19Compare
Caldera FN-6960 Plus 140mm PWM Case Fan793$19Compare
Teralux FN-1879 Pro 120mm PWM Case Fan444$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-5756 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/4080468 (accessed 2026-10-21).