Hardware Spec Index

Zephyra FN-4644 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4644-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index556 (Case Fans scale)
Category rank#25,620
Street price$19
Power3 W
Performance per dollar29.26
Released2025

Specifications

BrandZephyra
ModelZephyra FN-4644 Ultra
Size120 × 120 × 25 mm
Speed200–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4644 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/11670890 (accessed 2026-10-19).