simultaneously With its four USB ports that let you charge four devices at the same time, this USB AC adaptor is the perfect solution to save outlet space for families who have multiple devices to recharge, or to charge all your mobile devices simultaneously when travelling. charging One of the ports offers a 2.4-A output, 5x faster than conventional AC adaptors, to enable fast charging of larger devices such as tablets. The other three ports let you charge your devices up to 3x faster than conventional AC adaptors.1 Our AC adapter features Heat Resistant Design and Intelligent Power Controller exclusive technology to maintain safe and reliable performance with repeated use. 100-240 V worldwide voltage Ideal for travelling, 100-240 V compatibility means you can charge your devices wherever you are in the world2. Compatible with your USB devices You can charge not only smartphones, but also tablets, cameras and other USB-equipped devices. High durability Use of high quality materials ensures high durability, as well as safe and reliable performance. Tested to withstand over 5000 USB cable connections and 3000 power socket connections.