Allows 4 USB 3.0 devices to be connected to a single port On/Off switch on each port allows users to manage power consumption of the connected devices SuperSpeed transfer rates up to 5Gbps, backwards compatible with USB 2.0 / 1.1 Bus-powered with optional USB Micro-B socket for use with high powered devices 2 year warranty A USB hub connects to a PC or laptop and provides additional USB ports for connecting multiple peripherals or other devices simultaneously. The Lindy 4 Port USB 3.0 Hub provides convenient access and effective power management for USB peripherals and storage devices. Capable of data transfer speeds of up to 5Gbps, the hub is also backwards compatible with USB 2.0 and 1.1. The hubs individual On/Off switching ports can help reduce overall power consumption and are perfect for accessing external hard drives or other periodically used devices. An optional power supply can be connected for use with high current USB devices. Information about USB 3.0, 3.1 & 3.2 USB 3.0, USB 3.1 and USB 3.2 PCs, cables and devices are all compatible with each other, when using either a USB Type A or USB Type C host interface. USB 3.0, USB 3.1 Gen 1 and USB 3.2 Gen 1 all support data transfer rates up to 5 Gbps. USB 3.1 Gen 2 and USB 3.2 Gen 2 both support data transfer rates up to 10 Gbps.