Hardware Spec Index

Brontix FN-5781 Prime 120mm PWM Case Fan

Case Fans · Brontix · SKU FN5781-PRIME · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index652 (Case Fans scale)
Category rank#36,387
Street price$19
Power3 W
Performance per dollar34.32
Released2020

Specifications

BrandBrontix
ModelBrontix FN-5781 Prime
Size120 × 120 × 25 mm
Speed400–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-1550 Ultra 120mm PWM ARGB Case Fan849$29Compare
Teralux FN-3373 Max 120mm PWM Case Fan658$19Compare
Caldera FN-7178 Ti 140mm PWM Case Fan295$9Compare
Teralux FN-5615 Max 120mm PWM Case Fan445$19Compare
Teralux FN-4365 Ti 120mm PWM Case Fan761$19Compare
Corvane FN-2841 XT 140mm PWM ARGB Case Fan1,212$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-5781 Prime 120mm PWM Case Fan”, https://vextor7.com/item/2018194 (accessed 2026-10-19).