This product is a universal power adapter, operating at 110V-240V input AC voltage and 3V-12V adjustment output DC voltage. With high quality material and multiple protection function, it is easy and safe to use, 8 DC adapter tips allow the adapter to easily power different kinds of electronic devices. strong>Features: Universal Adapter with USB Port - Universal 30W plug-in power adapter with 8 DC adapter tips is easy to use and compatible with most electronic devices such as cell phones , tablets, cameras, monitors, etc. And it has a USB port (5V 2.1A) for charging at the same time. Output voltage adjustment: worldwide input voltage 110-240V, output voltage DC 3V/ 4.5V / 5V/ 6V/ 7.5V/ 9V/ 12V, easy to adjust the output voltage via the equipped wrench tool. Safe and reliable - Multiple protection, with high temperature/over-output and voltage d input/over-output and input current/intelligent current/short-circuit/static protection. Premium quality - Selected ABS, PC and flame