Description:This USB 4 ports extension adapter can break through the computer USB cable length limitations, users can use this product through a single network cable using the USB port at long distance, the product can be widely used in computer science and education. Features:1.Powered by the USB port, no need for extra power. 2.Suitable for Cat5/Cat5E/Cat6 patch cord. 3.Support USB1.1 USB2.0. Can be hot-plug USB devices, and support four devices connected.4.Allows you to connect your USB device to your computer at a distance up to 50M/164ft. 5.Ideal for use with USB cameras, printers, web cameras, keyboard, mouse extensions and any other USB devices. Specifications:Color: BlackSize: USB Female Cable Length: 18.9cm / 7.44inch USB Male Cable Length: 18.1cm / 7.12inchPackage Weight: 100gNote: Some high-power USB device is not available for this extension cable.Package Included:1 x RJ 45 Male Extension Adapter1 x RJ 45 4 USB Female Extension Adapter