Anker&reg; AH112 USB 3.0 4-Port Hub + 5V 2.1A Charge-Only Port, 12V 3A Power Adapter and 3.5-foot USB 3.0 Cable Included 4 SuperSpeed USB 3.0 ports support data transfer rates of up to 5Gbps. (Note: actual rate will Additional power port (2.1A) offers enough current to charge both a smartphone and a tablet at high Built-in surge protector safeguards your devices, while respiring LEDs display the status of all Supports Plug and Play and hot swapping. No installation of drivers required for Windows XP / Vista Package includes: USB 3.0 4-Port Charging Hub, 12V 3A power adapter(with 3.3ft cord), 3.5-foot USB