Hardware Spec Index

Zephyra FN-9721 Pro 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN9721-PRO · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index670 (Case Fans scale)
Category rank#25,199
Street price$19
Power3 W
Performance per dollar35.26
Released2023

Specifications

BrandZephyra
ModelZephyra FN-9721 Pro
Size140 × 140 × 25 mm
Speed300–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-9721 Pro 140mm PWM Case Fan”, https://vextor7.com/item/45809938 (accessed 2026-10-24).