Hardware Spec Index

Zephyra FN-3638 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN3638-PRO · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index640 (Case Fans scale)
Category rank#973
Street price$19
Power3 W
Performance per dollar33.68
Released2023

Specifications

BrandZephyra
ModelZephyra FN-3638 Pro
Size120 × 120 × 25 mm
Speed400–2,000 RPM (PWM)
Airflow68.0 CFM
Static pressure2.20 mmH₂O
Noise25 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3638 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4493829 (accessed 2026-10-19).