Hardware Spec Index

Zephyra FN-1977 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN1977-ULTRA · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index707 (Case Fans scale)
Category rank#30,241
Street price$29
Power3 W
Performance per dollar24.38
Released2022

Specifications

BrandZephyra
ModelZephyra FN-1977 Ultra
Size120 × 120 × 25 mm
Speed200–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-1977 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/19948872 (accessed 2026-10-19).