UHS-II(Ultra High Speed Phase II)是 SD 卡协会制定的一种高速存储卡标准,旨在提供比 UHS-I 更快的数据传输速度。UHS-II 标准支持的最高传输速度可达 312MB/s,远超 UHS-I 的 104MB/s。这种技术主要通过在 SD 卡和读卡器之间增加第二排数据引脚来实现,从而实现双通道数据传输。UHS-II 卡通常具有两排金手指,而 UHS-I 卡只有一排。尽管 UHS-II 提供了显著的速度提升,但它仍然向后兼容 UHS-I 设备,尽管在 UHS-I 模式下无法发挥其全部速度潜力。UHS-II 主要用于专业摄影和视频制作领域,特别是在需要高速连拍或录制高分辨率视频(如 4K 和 8K)的场景中。了解 UHS-II 的工作原理和技术细节,可以帮助用户更好地选择适合其需求的存储解决方案,特别是在高性能要求的应用中。
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