Hardware Spec Index

Zephyra FN-3655 Ultra 140mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3655-ULTRA · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index1,054 (Case Fans scale)
Category rank#36,281
Street price$29
Power3 W
Performance per dollar36.34
Released2020

Specifications

BrandZephyra
ModelZephyra FN-3655 Ultra
Size140 × 140 × 25 mm
Speed400–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise23 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3655 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/91665487 (accessed 2026-10-23).