4 7 Port USB 3.0 Hub High Speed Splitter ON/OFF Switch Power Adapter Laptop PC

Description

Feature:
100% brand new and high quality
Hot plug & play USB device
Fully compatible with USB specification version 3.0
With blue LED for power
ON/OFF switches activate or deactivate individual ports
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
Specification:
Item Name: USB HUB 3.0
Cable: USB 3.0 About 605mm
Data Transfer Rate: Upto 5Gbps/480mbps
Color: Black
Compatible: WindowsXP/Vista/7 and MAC OS 9.1 or higher
Package Include:
1 x USB 3.0 Hub
1 x USB  Cable
1 x Power Adapter
Notes:
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