Hardware Spec Index

Zephyra FN-4937 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4937-ULTRA · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index530 (Case Fans scale)
Category rank#13,731
Street price$19
Power4 W
Performance per dollar27.89
Released2021

Specifications

BrandZephyra
ModelZephyra FN-4937 Ultra
Size120 × 120 × 25 mm
Speed300–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4937 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/28028220 (accessed 2026-10-23).