Hardware Spec Index

Zephyra FN-3964 Pro 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3964-PRO · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index263 (Case Fans scale)
Category rank#35,433
Street price$9
Power3 W
Performance per dollar29.22
Released2019

Specifications

BrandZephyra
ModelZephyra FN-3964 Pro
Size120 × 120 × 25 mm
Speed500–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise27 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3964 Pro 120mm PWM Case Fan”, https://vextor7.com/item/6209530 (accessed 2026-10-19).