- 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,7-port, this compact USB3.0 high-speed hub is small enough for travel, and cable enough to meet your connectivity needs 7.Thespecification of the power supply is 3.5*1.35mm, 5V 2A.