Hardware Spec Index

Zephyra FN-5638 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN5638-PRIME · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index550 (Case Fans scale)
Category rank#37,148
Street price$19
Power4 W
Performance per dollar28.95
Released2020

Specifications

BrandZephyra
ModelZephyra FN-5638 Prime
Size140 × 140 × 25 mm
Speed500–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-5638 Prime 140mm PWM Case Fan”, https://vextor7.com/item/9355653 (accessed 2026-10-24).