Hardware Spec Index

Zephyra FN-3666 Ultra 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN3666-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index891 (Case Fans scale)
Category rank#21,439
Street price$29
Power3 W
Performance per dollar30.72
Released2026

Specifications

BrandZephyra
ModelZephyra FN-3666 Ultra
Size140 × 140 × 25 mm
Speed300–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise32 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-3666 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/11086355 (accessed 2026-10-19).