What is a USB connector

USB is the Universal Serial Bus. This is gradually in recent years in the PC field widely used new interface technology. USB ports offer faster transfer speed, support for hot swap, and connect multiple devices. It has been widely used in all kinds of external equipment. There are three types of USB ports: USB1.1 and USB2.0, and more recently USB3.0. Theoretically, USB1.1 can deliver speeds of up to 12Mbps/ SEC, while USB2.0 can deliver speeds of up to 480Mbps/ SEC and is downward compatible with USB1.1.

With the rapid development of computer hardware, peripheral equipment is increasing, keyboard, mouse, modem, printer, scanner has long been known to everyone, digital camera, MP3 walkman followed, so many devices, how to access the personal computer? USB was created for this purpose.