What is a 2.0 USB port?

USB 2.0 is a Universal Serial Bus (USB) standard. Almost all devices with USB capabilities, and nearly all USB cables, support at least USB 2.0. Devices that adhere to the USB 2.0 standard have the ability to transmit data at a maximum speed of 480 Mbps. … USB 2.0 is often referred to as Hi-Speed USB.