This Hichor Travel Plug Adapter Has Patented Design of Built-in auto-resetting fuse to Ensures the Safety- When the wire is short-circuit or overload, the adapter will automatic power off to limit and protect the circuit. A few minutes later, the auto-resetting fuse cools down again and can be used normally. Thanks to an auto-resetting fuse it’ll cut off the power if it detects that it’s getting too hot, which should save your devices from problems.4A 5V DC max; 2400mA. Unidapt adapters are small, safe and Perfect for Travel.Adaptor allows simultaneous use of the AC power Socket and four usb charging ports and 1 usb C port including all smart phones, Laptops, Bluetooth speakers, Power banks, tablets and so on.