USB Implementers Forum USB implementatie forum USB-IF Certified USB Implementers Forum USBIF услуги по сертификации USBIF Compliance USBIF USB-IF USB-IF USB-IF USB Implentors Forum USB-IF USB-IF Certified seal of approval No. USB standards USBIF www.usb.org/developers/compliance USB-IF website l’USB-IF USB-IF organization official USB-IF Compliance Program details услуги по сертификации www.usb.org/developers/compliance USB Implementers Forum USB Implementers Forum USB產品認證 USB Implementers Forum (USB-IF) USB Implementers Forum USB-IF Compliance Program USB compliance program Cnet USBIF No. USB Implementers Forum USB Compliance Program page USB-IF* http://www.usb.org/developers/compliance/ No. USB-IF (USB Implementers Forum) USB-IF www.usb.org/developers/compliance/ USB Implentors Forum USB compliance documentation