Hardware Spec Index

Zephyra FN-4251 Prime 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4251-PRIME · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index586 (Case Fans scale)
Category rank#3,333
Street price$19
Power4 W
Performance per dollar30.84
Released2022

Specifications

BrandZephyra
ModelZephyra FN-4251 Prime
Size120 × 120 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4251 Prime 120mm PWM Case Fan”, https://vextor7.com/item/6977211 (accessed 2026-10-21).