Hardware Spec Index

Zephyra FN-3705 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3705-PRIME · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index607 (Case Fans scale)
Category rank#43,524
Street price$19
Power3 W
Performance per dollar31.95
Released2022

Specifications

BrandZephyra
ModelZephyra FN-3705 Prime
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3705 Prime 140mm PWM Case Fan”, https://vextor7.com/item/5653085 (accessed 2026-10-19).