USB Port - This 41w universal power supply includes an extra USB Port, charge via USB port without disconnect the others, offers more convenience to charge USB devices Adjustable Voltage Power Supply - AC Input: 100-240Vac 50/60Hz, DC Output: 6V 3A, 9V 3A, 12V 3A, 15V 2.4A, 18V 2A, 20V 1.8A, 24V 1.5A; USB Output: 5V 1A. DC Plug Polarity: center positive(+) 5.5mm x 2.1mm DC Plug and 8 Interchangeable Tips - 5.5mm x 2.5mm, 4.8mm x 1.7mm, 4.0mm x 1.7mm, 3.5mm x 1.35mm, 3.0mm x 1.1mm, 2.5mm x 0.7mm, micro USB, LED connector 2 pin. All-in-one Adapter - This universal AC/DC adapter comes with 7 levels of output voltage and 8 common-used tips, that makes it fits 95% of home appliances. Such as DVD Player,baby monitor, routers, record players, LED strip lights, CCTV camera system, radio,TV box,and more electronic devices Package List: 1 x 41W Universal ac adapter/ 1 x switch key/ 8 x DC adapter tips, Please DOUBLE CONFIRM the DC tip dimensions and polarity to ensure the compatibility