Hardware Spec Index

Zephyra FN-4857 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4857-PRIME · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index555 (Case Fans scale)
Category rank#11,045
Street price$19
Power4 W
Performance per dollar29.21
Released2021

Specifications

BrandZephyra
ModelZephyra FN-4857 Prime
Size120 × 120 × 25 mm
Speed500–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4857 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4641197 (accessed 2026-10-23).