Hardware Spec Index

Zephyra FN-4331 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN4331-PRIME · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index601 (Case Fans scale)
Category rank#7,347
Street price$19
Power3 W
Performance per dollar31.63
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4331 Prime
Size140 × 140 × 25 mm
Speed500–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4331 Prime 140mm PWM Case Fan”, https://vextor7.com/item/11657705 (accessed 2026-10-23).