Hardware Spec Index

Zephyra FN-3640 Prime 140mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3640-PRIME · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index1,212 (Case Fans scale)
Category rank#25,932
Street price$39
Power3 W
Performance per dollar31.08
Released2020

Specifications

BrandZephyra
ModelZephyra FN-3640 Prime
Size140 × 140 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3640 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/6568655 (accessed 2026-10-20).