鑑於近幾年來USB技術的測試，因為USB Type-C & Power Delivery的加入而趨於複雜，筆者於2011年開始接觸USB-IF認證測試範疇，趁此次機會將相關測項做整理與分析，讓想了解USB技術認證的讀者，或是有USB相關產品、想執行USB-IF認證但卻不得其門而入的公司，能藉此文章有一個大概的方向與輪廓。
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