Hardware Spec Index

Zephyra FN-9931 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN9931-PRIME · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index500 (Case Fans scale)
Category rank#8,027
Street price$19
Power4 W
Performance per dollar26.32
Released2019

Specifications

BrandZephyra
ModelZephyra FN-9931 Prime
Size140 × 140 × 25 mm
Speed300–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise26 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-9931 Prime 140mm PWM Case Fan”, https://vextor7.com/item/20097928 (accessed 2026-10-26).