Hardware Spec Index

Zephyra FN-4637 Pro 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN4637-PRO · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index251 (Case Fans scale)
Category rank#47,583
Street price$9
Power4 W
Performance per dollar27.89
Released2022

Specifications

BrandZephyra
ModelZephyra FN-4637 Pro
Size140 × 140 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4637 Pro 140mm PWM Case Fan”, https://vextor7.com/item/12739701 (accessed 2026-10-26).