Multi-Purpose USB Power Hub Adapter

Features:  1. 100% brand new and high quality 2. Hot plug & play USB device 3. Fully compatible with USB specification version 3.0 4. With blue LED for power 5. ON/OFF switches activate or deactivate individual ports 6. Designed with 4-port, and 7-port, this compact USB3.0 high-speed hub is small enough for travel, and cable enough to meet your connectivity needs 7.  The specification of the power supply is 3.5*1.35mm, 5V 2A. Specifications: USB Ports:4 , 7 Cable: USB 3.0 About 605mm, USB 2.0About 400mm Size:104*35*21mm, 164*35*21mm Data Transfer Rate: Upto 5Gbps/480mbps Color: Black/White Compatible: WindowsXP/Vista/7 and MAC OS 9.1 or higher