Hardware Spec Index

Zephyra FN-4057 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN4057-PRIME · Released 2024 · Updated 2026-10-24

Key facts

Benchmark index511 (Case Fans scale)
Category rank#37,646
Street price$19
Power4 W
Performance per dollar26.89
Released2024

Specifications

BrandZephyra
ModelZephyra FN-4057 Prime
Size140 × 140 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4057 Prime 140mm PWM Case Fan”, https://vextor7.com/item/6504197 (accessed 2026-10-24).