Hardware Spec Index

Zephyra FN-9904 Pro 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN9904-PRO · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index342 (Case Fans scale)
Category rank#32,224
Street price$19
Power4 W
Performance per dollar18.00
Released2021

Specifications

BrandZephyra
ModelZephyra FN-9904 Pro
Size140 × 140 × 25 mm
Speed200–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-9904 Pro 140mm PWM Case Fan”, https://vextor7.com/item/79489507 (accessed 2026-10-23).