Hardware Spec Index

Zephyra FN-4939 Prime 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4939-PRIME · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index345 (Case Fans scale)
Category rank#21,625
Street price$9
Power4 W
Performance per dollar38.33
Released2022

Specifications

BrandZephyra
ModelZephyra FN-4939 Prime
Size120 × 120 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4939 Prime 120mm PWM Case Fan”, https://vextor7.com/item/43030056 (accessed 2026-10-26).