Hardware Spec Index

Zephyra FN-4643 Pro 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN4643-PRO · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index257 (Case Fans scale)
Category rank#39,750
Street price$9
Power4 W
Performance per dollar28.56
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4643 Pro
Size140 × 140 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4643 Pro 140mm PWM Case Fan”, https://vextor7.com/item/21754865 (accessed 2026-10-25).