Hardware Spec Index

Zephyra FN-4257 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4257-PRO · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index466 (Case Fans scale)
Category rank#47,471
Street price$19
Power3 W
Performance per dollar24.53
Released2024

Specifications

BrandZephyra
ModelZephyra FN-4257 Pro
Size120 × 120 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4257 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/2104492 (accessed 2026-10-22).