Unverified88% confidenceDecision RuleTime unknown
带宽速率的市场标称非常混乱：'USB3.2 Gen2'=10Gbps，'USB3.2 Gen2x2'=20Gbps，二者差一倍但名称相似，购买NVMe硬盘盒线缆必须认准Gen2x2或USB4标识
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Unverified传输速率标称需看清：USB 3.2 Gen1=5Gbps、Gen2=10Gbps，很多商品用USB 3.0/3.1模糊表述实为5Gbps，接NVMe SSD想跑满速需认准10Gbps及以上82% similarUnverified传输速率标注需认准具体协议：USB 3.2 Gen1=5Gbps、Gen2=10Gbps、Gen2x2=20Gbps，仅标'USB 3.0'实为5Gbps；接NVMe SSD要满速需选10Gbps及以上82% similarUnverifiedUSB-C接口标注需看协议版本而非外形：USB3.2 Gen2为10Gbps、Gen1仅5Gbps、雷电4/USB4达40Gbps，外接固态硬盘等高速设备时协议不匹配会大幅拖慢速度82% similarUnverified接口协议决定实际速度：USB 3.2 Gen1(=USB3.0)理论5Gbps约500MB/s，Gen2达10Gbps约1000MB/s，Gen2x2达20Gbps；买了PCIe SSD却只配Gen1接口是性能浪费，选购时接口协议要匹配盘体速度81% similar
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