Hardware Spec Index

Zephyra FN-3781 SE 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3781-SE · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index391 (Case Fans scale)
Category rank#23,395
Street price$9
Power2 W
Performance per dollar43.44
Released2019

Specifications

BrandZephyra
ModelZephyra FN-3781 SE
Size120 × 120 × 25 mm
Speed200–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3781 SE 120mm PWM Case Fan”, https://vextor7.com/item/7364320 (accessed 2026-10-20).