Multi-Port USB Extension Hub: This USB 3.0 Hub Splitter could help expand to 4 Ports USB on your computer or Windows tablet, including hard drives, USB hubs, Mouse, keyboards, flash drives, printers, and more. SuperSpeed Data Sync: The USB data hub supports Transfer Speeds up to 5Gbps (USB 3.0), Reverse Compatible USB 2.0 and USB 1.1, transfer an HD movie in seconds. Built in USB Extension Cable makes you easily reach out-of-the-way ports. Support BC 1.2 Charging: Additional Micro USB power supply port is optional to some high power-consuming device, such as external hard-drives. Support BC 1.2 Charging, which could provide current supply up to 5V or 1.5A. (Not Included: Micro USB Cable and USB Power Supply) Great Compatibility: Compatible with Windows 10 or 8 or 8.1 or 7 or Vista or XP and Mac OS, Linux and Chrome OS. No Installation Plug and Play and Hot Swappable. After-sales-If you have any questions about our products, please contact us in time. Package included: 1 Pack