usb 2.0 spec

【文件属性】：

文件名称：usb 2.0 spec

文件大小：1.74MB

文件格式：PDF

更新时间：2013-04-09 09:31:27

usb 2.0 spec

usb 2.0 spec ,which printed by english ,i am so sorry that can't find a simple chinese document,but it also useful