uxcell AC110-220V US Plug 2 US Outlet 4 USB Ports Power Strip 5ft Cable Black Overload protector inside, more safety than normal socket. 2 US sockets and 4 USB multiple socket outlet, it is enough for your electrical appliances. All plastic part are using flame-resistant engineering plastic, without any danger. All switches are contact switches, durable can be operated 100000 times at least. Low resistant, low power consumption, high load ang high safety.