Hardware Spec Index

Zephyra FN-3705 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3705-ULTRA · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index456 (Case Fans scale)
Category rank#32,113
Street price$19
Power3 W
Performance per dollar24.00
Released2024

Specifications

BrandZephyra
ModelZephyra FN-3705 Ultra
Size120 × 120 × 25 mm
Speed200–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3705 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/9770249 (accessed 2026-10-19).