Hardware Spec Index

Zephyra FN-9891 Prime 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN9891-PRIME · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index349 (Case Fans scale)
Category rank#19,698
Street price$9
Power4 W
Performance per dollar38.78
Released2025

Specifications

BrandZephyra
ModelZephyra FN-9891 Prime
Size120 × 120 × 25 mm
Speed500–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-9891 Prime 120mm PWM Case Fan”, https://vextor7.com/item/389904 (accessed 2026-10-22).