excellent NF-F12 120mm premium fan. With its AAO (Advanced Acoustic Optimization) frames and advanced aerodynamic design measures such as the FocusedFlow system of the NF-F12 achieves superior performance levels with minimal operating noise .. The Smooth Commutation Drive technology and the reference-class storage SSO2 offer excellent running smoothness and excellent long-term stability. the whole package is rounded off by a USB power adapter cable and the adapter OmniJoin set - an all-round quality premium solution for demanding applications with 5V PWM control.