suitable for many occasions: Widely used in computers, laptops and other devices that require usb ports for external display or expansion.
Great for use at home or in a dorm room.
PLEASE NOTE
Do not used for charging , it is used for offering more usb ports to Transfer file
Thespecification of the power supply is 3.5*1.35mm5V 1A, it support less than 1TB hard disk , if your hard disk is more than 1TB , then the power supply not suit you
There are 9 options in this link , if you want usb 3.0 with power apply , please choose the right option you need
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, insufficient power supply will lead to reduced data transmission, error code, with power can improve reliability.
Features
100% brand new and high quality
Hot plug & play USB device
Fully compatible with USB specification version 3.0/2.0
With blue LED for power
ON/OFF switches activate or deactivate individual ports
Designed with 4-port,7-port,this compact USB 3.0/2.0 high-speed hub is small enough for travel,and cable enough to meet your connectivity needs
Specifications
Item Name:USB HUB 3.0/2.0
USB Ports: 7
Cable:USB 3.0 HUB is About 605mm, USB 2.0 HUB is About 400mm
Size:104*35*21mm,164*35*21mm
Date Transfer Rate:Upto 5Gbps
Compatible: WindowsXP/Vista/7 and MAC OS 9.1 or higher