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((1)Do not used for charging , it is used for offering more usb ports to Transfer file
(2)The specification of the power supply is 3.5*1.35mm, 5V 1A.
(3)There are 9 options in this link , if you want usb 3.0 with power apply , please choose the right option you need
1. 100% brand new and high quality
2. Hot plug & play USB device
3. Fully compatible with USB specification version 3.0/2.0
4. With blue LED for power
5. ON/OFF switches activate or deactivate individual ports
6. Designed with 4-port,7-port,this compact USB 3.0/2.0 high-speed hub is small enough for travel,and cable enough to meet your connectivity needs
Item Name:USB HUB 3.0/2.0
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