Hardware Spec Index

Zephyra FN-3973 SE 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3973-SE · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index419 (Case Fans scale)
Category rank#15,197
Street price$19
Power3 W
Performance per dollar22.05
Released2021

Specifications

BrandZephyra
ModelZephyra FN-3973 SE
Size120 × 120 × 25 mm
Speed300–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 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-3973 SE 120mm PWM Case Fan”, https://vextor7.com/item/58770451 (accessed 2026-10-20).