small USB knowledge for Microsoft, if not plug-and-play peripherals. it is unable to obtain WHQL. For USB IF (USB Implementers Forum), if not plug-and-play peripherals. USB it is unable to obtain the certification, can not use USB logo. The logo in the official website USB www.usb.org see (This article is below). due to the USB 2.0 standard was released, USB IF change the original logo, some manufacturers still use the original logo, which is actually deceiving the user.

USB.pdf

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