Versatile Socket Strips: The extension cable has 6 EU sockets and 4 USB ports. 2500W and 10A support charging for all household appliances under 2500W. The USB connection with 5V and 3.4A USB output, which is suitable for all electronic devices, is faster than conventional USB connections. Smart Charging Function: 4 smart USB ports with up to 3.4A. It can quickly identify the charger and automatically distribute the charging current of the combination of 0.1 to 2.4A to any device such as tablet, mobile phone, power bank, etc. Supports 2.4A fast charging device. Thanks to its high level of compatibility, smartphones, tablets, or other electronic products of all brands can be charged. Safety Protection: 75N safety protection shutter to prevent children from accidentally touching the socket, increased protection against electric shock. Thunder and surge protection ensure more safety for household appliances. It is made of flame-retardant PC material, resistant to high temperatures, and