MULTIPLE OUTLETS: Universal Sockets 220V/2500W with smart USB Ports is enough to charge your multiple devices simultaneously. VERTICAL TOWER DESIGN: You can charge your multiple devices at any angle, SPACE SAVING The Smart Design Solutions USB extension lead is ideal for using at home/office/school/meeting/exhibition/party. SMART CHARGING: 2 Universal Smart USB ports (5V/2.1A) with auto-adjust charging rate, compatible for smartphones tablets, laptops and other USB powered devices. ENERGY SAVING: 2 independent switches in each layer allow you to switch on or off as needed, the USB Extension Lead makes your life more convenient and safer. SAFE & DURABLE: USB extension lead is made of premium flame resistant material and 2.8 pure copper cable with UK type Plug, with built-in circuit breaker, overload protection.