13 IN 1 Power Strip with Triangle Stable Shape: The 3-side power strip tower with 9 AC outlets (voltage: 110V-125V, current:1625W/13A) and 4 USB charging ports, can power up to 13 devices simultaneously. The tower's compact design saves more space, suitable for the home, office, and college dorm room. The Triangle shape is also more stable, and will not fall easily. USB Power Strip with Master ON/OFF Switch: Surge protector power strip with 4 USB charging ports provides 3.1A in total. Each USB A port features 5V/2.4A Max output. Built-in smart charging technology that detects and delivers an ideal input current of each up to 5V/2.4A. Would charge your cellphone, laptop, tablet, cameras, etc. The master switch on the top of the power strips is easier for you to manage all connected devices, no more plugging & unplugging hassle. Charging Tower with Multiple Protection: The USB power strip surge protector with multiple protection is made from ABS + PC fire-resistant material an