Hardware Spec Index

Zephyra FN-3804 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3804-ULTRA · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index455 (Case Fans scale)
Category rank#28,300
Street price$19
Power3 W
Performance per dollar23.95
Released2022

Specifications

BrandZephyra
ModelZephyra FN-3804 Ultra
Size140 × 140 × 25 mm
Speed200–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3804 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/32933794 (accessed 2026-10-26).