Dear Customer: Hello! Lemorle is a brand from China, it has been founded 16 years to focus on the development of HUB class high-tech products, our technology in China is a top technology limited company!! Lemorele products are made of aluminum alloy! Our team has gone through many fall and crash test results without worrying about quality problems!! If you encounter a quest problem during your purchase you can contact us at any time and the Lemoele team will respond and solve the problem within 12 hours!!= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =Product Introduction:Product An external device designed for laptop computers. By replicating and even expanding the ports of your laptop, you can make your laptop one stop connected to multiple accessories or external devices, such as power adapters, network cables, mice, external keyboards, printers, and external monitors. These ports perfectly solve the problem of A single USB A or USB port on a laptop.1. The product plug and play, do not need to install any driver2 .computers share 4 USB 3.0 peripherals that can be connected to printers, scanners, mice, keyboards, hard drives, USB sticks, etc. No need to constantly exchange cables or set up complex network sharing software3. The use of this product can greatly improve work efficiency, the USB interface supports 5Gb/s data transmission rate, and can be perfectly matched with high-bandwidth USB 3.0 devices, such as external hard disks, high-resolution network cameras, cameras, video surveillance cameras, digital cameras, multi-channel audio, etc. It is backward compatible with USB 2.0 and USB 1.1 devices.4. You can easily switch between systems within a second via a button with an LED indicating the active computer.5. Any charger with a higher voltage output is not recommended to be used together, which may affect product performanceWide compatibility:This USB adapter hub is compatible with all systems and devices with USB A or USB ports, such as USB A USB USB USB USB USB USB USB USB USB USB USB USB USB USB USB USB, mouse, keyboard, mobile hard disk, mobile phone and other devices! It is compatible with Windows/Mac/LinuxProduct list:1 x USB adapter1x power cable2Xusb-a cable