Hardware Spec Index

Zephyra FN-3639 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN3639-PRIME · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index259 (Case Fans scale)
Category rank#15,431
Street price$9
Power3 W
Performance per dollar28.78
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3639 Prime
Size120 × 120 × 25 mm
Speed500–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3639 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/2360973 (accessed 2026-10-22).