Hardware Spec Index

Zephyra FN-4646 Ultra 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4646-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index1,172 (Case Fans scale)
Category rank#29,277
Street price$39
Power4 W
Performance per dollar30.05
Released2019

Specifications

BrandZephyra
ModelZephyra FN-4646 Ultra
Size140 × 140 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise30 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-4646 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/529663 (accessed 2026-10-20).