Description: This product has 7/4 extended USB docking ports. binding version 2.0 Operating system: Win95 sR2/98SE/Me/2000 /XP/VISTA, Linux2.4and os8.5 or above Transmiion rate: full speed 480Mbps, medium speed 12Mbps, low speed 1.5Mbps Power supply: USB 5V/500mA Operating temperature of HUB: 0-70 Storage temperature of HUB: 10-90 Humidity range of HUB: 10%-90% Storage humidity range of HUB: 10%-90% Note: This hub is not for charging, only for data transfer Specifications: Feature: NEW QUALITY: 100% new and high quality product for home or profeional use Portable: Lightweight and easy to carry Easy to use: The notebook has only two USB ports, and there is no place for a USB flash drive after plugging in the mouse and camera. Bringing a USB hub is more convenient Recommended use: The usb interface of the desktop computer is generally at the back, and it is very tiring to bend over to plug and unplug. Connecting the USB hub to the back, we can use the USB device directly on the front of the host. High practicality: Get rid of the trouble of overcrowded USB ports. The design of this one is very beautiful. The independent USB sockets are separated from each other, avoiding the crowding of some large USB devices, which is practical and convenient. Package Included: 1*USB hub Notes: Due to differences between different monitors, the pictures may not reflect the actual color of the item. Compare the detail size with your size, please allow 1-3cm error due to manual measurement. If there is a problem with the product, please leave a meage before giving bad feedback. Thanks for your understanding. Notes: Due to differences between different monitors, the pictures may not reflect the actual color of the item. Compare the detail size with your size, please allow 1-3cm error due to manual measurement. If there is a problem with the product, please leave a meage before giving bad feedback. Thanks for your understanding.