Hardware Spec Index

Zephyra FN-5657 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN5657-PRIME · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index748 (Case Fans scale)
Category rank#27,171
Street price$19
Power3 W
Performance per dollar39.37
Released2025

Specifications

BrandZephyra
ModelZephyra FN-5657 Prime
Size140 × 140 × 25 mm
Speed500–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-5657 Prime 140mm PWM Case Fan”, https://vextor7.com/item/8038463 (accessed 2026-10-26).