Hardware Spec Index

Zephyra FN-4991 Max 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4991-MAX · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index612 (Case Fans scale)
Category rank#34,195
Street price$19
Power3 W
Performance per dollar32.21
Released2022

Specifications

BrandZephyra
ModelZephyra FN-4991 Max
Size120 × 120 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4991 Max 120mm PWM Case Fan”, https://vextor7.com/item/9969280 (accessed 2026-10-26).