Hardware Spec Index

Zephyra FN-3977 Ultra 120mm PWM ARGB Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN3977-ULTRA · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index883 (Case Fans scale)
Category rank#20,226
Street price$29
Power4 W
Performance per dollar30.45
Released2020

Specifications

BrandZephyra
ModelZephyra FN-3977 Ultra
Size120 × 120 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3977 Ultra 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/8078413 (accessed 2026-10-21).