●Input DC 3-5V, Output DC 5-12V adjustable,Max 6W ●It's equipped with 8 Conntectors,DC head output: 5.5 * 2.5mm ,5.5 * 2.1mm, 4.0 * 1.7mm ,3.5 * 1.35mm, 3.0 * 1.1mm ,2.5 * 0.7mm ,Micro USB ,LED Terminal Connector. ●Features a multi-speed controller to set the fan's speed to optimal noise and airflow levels. ●The Controller is not only suitable for speed regulation, but also for dimming, temperature regulation.