Whether you're at home or in the office, Tripp Lite's 10-port USB charging station U280-010-ST-CEE provides an abundance of ports and power to keep all your devices running at 100% capacity. No more searching behind furniture for an available outlet or unplugging one device to charge another. You can charge up to ten tablets, smartphones, laptops and other devices at the same time. This multi-device docking station doesn't require a computer, so you can take it anywhere mains power is available. To charge your USB devices, simply plug the included dual-voltage (100V - 240V) external power supply into any Schuko outlet and connect your devices to the available USB ports. The charger protects against overheating, overcurrent and overcharging - it stops charging as soon as your devices' batteries have reached their full capacity. One.