TeckNet USB 3.0 7 Port Hub with 36W Power Adapter and 3ft USB 3.0 Cable [VIA VL812 Chipset] - 24 Month UK Based Warranty 7 USB 3.0 ports with built-in surge protector; Smart chip power management allows devices to communicate idle states and latency tolerance for progressively lower power states and subsequently increased performance and power efficiency. USB 3.0 transfer rate up to 5Gbps, backward compatiable USB 2.0/1.1 Plug and play. Supports hot swapping, Plug and Play. No install driver needed; LED indicators display the status of DC power supply and USB connections. Safe and reliable. Voltage and Current overload protection(surge protector) protect the Hub and conneted devices from electronically accident Package includes: 1 x TeckNet USB 3.0 7 port Hub, 1 X 12V 3A Power Adapter, 1 X USB 3.0 Cable (3 feet) & 1 X User Manual.