Superseded88% confidenceDecision RuleTime unknown
UHS-I卡理论最高读速约104MB/s，若相机支持UHS-II(卡背面有第二排金手指)应选UHS-II卡，读速可达300MB/s，但UHS-II卡插入UHS-I设备会自动降速，不能超频
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88%
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This knowledge claim has been superseded by newer content
看SD卡标称速度时，UHS-I卡理论上限约104MB/s，即使标注U3/V30实际持续写入也难超90MB/s；需要更高持续速度必须选UHS-II卡（背面双排金手指）Sources
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