Hardware Spec Index

Zephyra FN-3817 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3817-ULTRA · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index236 (Case Fans scale)
Category rank#5,976
Street price$9
Power4 W
Performance per dollar26.22
Released2020

Specifications

BrandZephyra
ModelZephyra FN-3817 Ultra
Size120 × 120 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise26 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3817 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/9756056 (accessed 2026-10-26).