Hardware Spec Index

Zephyra FN-4657 Prime 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4657-PRIME · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index341 (Case Fans scale)
Category rank#4,823
Street price$9
Power4 W
Performance per dollar37.89
Released2024

Specifications

BrandZephyra
ModelZephyra FN-4657 Prime
Size120 × 120 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4657 Prime 120mm PWM Case Fan”, https://vextor7.com/item/4447875 (accessed 2026-10-23).