USB接口2.0和1.1又什么区别。USB目前支持三种传输速度：低速的1.5Mbps、全速的12Mbps、高速的480Mbps，USB1.1的固定连结端口可以连接所有速度的周边，但当高速的装置连结在USB1.1连结埠上时，仅能表现出12Mbps的速度。USB2.0的固定连结端口可以连结三种速度的周边装置，并确保所有USB应用硬件间的兼容性-USB interface 2.0 and 1.1 What is the difference between also. USB currently supports three speeds: low speed of 1.5Mbps, full speed of 12Mbps, high-speed 480Mbps, USB1.1 fixed link port can connect all the speed of surrounding, but when the high-speed devices that link up at USB1.1 ports, the only show the speed of 12Mbps. Fixed link USB2.0 port can link the three speed peripherals, and to ensure that all USB applications between hardware compatibility