Features:
Do not used for charging,it is used for offering more usb ports to transfer file.
The power supply can solve the problem of insufficient power supply, if you need work with a hard disk , then you should choose the with power supply , and please note ,please don't use more than 2 hard disk at the same time.
The power supply can improve the usb transmission speed.
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 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.
Item Name:USB HUB 3.0
USB Ports:4 Ports(Without power supply/With power supply).
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
Compatible: WindowsXP/Vista/7 and MAC OS 9.1 or higher
Package Included:
1 x USB 3.0 HUB