【Multi-USB Port】This USB hub can easily expand one USB port of your computer to 4 ports, support 4 ports to operate at the same time, no pressure feeling and keep temperature in a mid-range Plug and play, no drivers needed, easy to use Note: This usb hub can not be used to charge devices because the output maximum current is only support 900mA 【Wide Compatibility and Application】This USB extension function is compatible with Windows 10/8/8.1/7/Vista/XP, Mac OS X, Linux, and Chrome OS. USB Hub 3.0 can be applied to a variety of devices such as Laptops, PC Towers, XBOXs, PS4, Flash Drives, Printers, Mouse, Card Readers, HDD, Mobile Phone OTG Adapters, Keyboards, Cameras, Game Consoles, USB Fans, USB Cables, etc 【High Speed Data USB Hub】Supports transfer speeds of up to 5Gbps (USB 3.0), 480Mbps (USB 2.0), and 12Mbps (USB 1.1). Note: This USB port output maximum current up to 900mA. Therefore, some hard drives require more than 900mA current, an external power adapter is required 【Hassle-free Services】PTS Our team has a professional technical team and excellent customer service. If you have any problem with the Hub USB, feel free to contact us, we will try our best to solve your problem