Hardware Spec Index

Zephyra FN-4921 Max 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4921-MAX · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index336 (Case Fans scale)
Category rank#19,393
Street price$9
Power4 W
Performance per dollar37.33
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4921 Max
Size120 × 120 × 25 mm
Speed500–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4921 Max 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/6400142 (accessed 2026-10-21).