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技術文章]教您辨認USB3.0/USB2.0並解析USB 2.0量測步驟，USB2.0實際量測影片- 品勛科技(keysight/安捷倫經銷商)
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DELOCK 83176: USB 3.0 A socket > USB 3.0 A plug +USB 2.0 A plug at reichelt elektronik
