Hardware Spec Index

Zephyra FN-4640 Core 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4640-CORE · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index530 (Case Fans scale)
Category rank#42,957
Street price$19
Power2 W
Performance per dollar27.89
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4640 Core
Size140 × 140 × 25 mm
Speed500–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4640 Core 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/86521455 (accessed 2026-10-25).