Hardware Spec Index

Zephyra FN-3644 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3644-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index1,254 (Case Fans scale)
Category rank#42,955
Street price$39
Power3 W
Performance per dollar32.15
Released2019

Specifications

BrandZephyra
ModelZephyra FN-3644 Ultra
Size120 × 120 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3644 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/29137721 (accessed 2026-10-25).