About this item Input and Output: Input: AC 100~240V, 50/60Hz; Output: DC 3~24V Adjustable, Max 3A 72W; It can supply any voltage between 3~24V, such as 3V, 4V, 4.5V, 5V, 5.5V, 6V, 9V, 12V, 14V, 15V, 19V, 20V, 24V, etc., and any amp less than 3A, such as 300mA, 500mA, 1A, 1.5A, 2A, 2.5A, 3A. LCD display will show the output voltage, in case that wrong voltage regulation damages your device. Upgraded Version Power Supply: Based on hundreds of user feedback, we have made improvements: 1. The knob can be adjusted more evenly, reaching 13V ~ 14V by rotating 50%. 2. Increase the off gear to turn off the power without pulling the plug. 3. Add a polarity converter cable, making it compatible with more devices, doubling its range of application. 14pcs Frequently Used Tips: It comes with an original 5.5x2.5mm tip and 14 frequently used tips: 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C, and DC