USB means Universal Serial BUS.Its advantages include:high
transmition rate (USB1.1 is 12Mbps;USB2.0 is 480Mbps;USB3.0 is 5
Gbps),easy use, hot swap,flexible connection,independent power
supply and so on. It can connect to most external devices:
mouse,keyboard,printer,scanner,camera,MP3,moble phone,portable hard
disk, ADSL Modem,Cable Modem and other.