EZOWare SuperSpeed USB 3.0 4-Port Hub with 4 Feet Cable and Power Adapter Backward Compatible with USB 2.0/1.1 Super slim 4 USB 3.0 ports with over-current detection and protection for easy expansion. Self powered and support a data transfer rate of up to 5Gbps (10 times faster than USB 2.0). Plug-n-Play, hot swappable, LEDs allow for easy status monitoring. External Power Adapter - for power hungry devices. 4 Feet Cable - flexible for desktop computers.