Hardware Spec Index

Zephyra FN-3973 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3973-ULTRA · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index795 (Case Fans scale)
Category rank#37,036
Street price$19
Power3 W
Performance per dollar41.84
Released2024

Specifications

BrandZephyra
ModelZephyra FN-3973 Ultra
Size120 × 120 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3973 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/4879800 (accessed 2026-10-25).