Hardware Spec Index

Zephyra FN-4821 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN4821-PRIME · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index305 (Case Fans scale)
Category rank#4,890
Street price$9
Power4 W
Performance per dollar33.89
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4821 Prime
Size140 × 140 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4821 Prime 140mm PWM Case Fan”, https://vextor7.com/item/3552991 (accessed 2026-10-20).