USB has been a PC standard interface which can transfer data in high speed.
通用串行总线USB已成为PC的标准接口，它可以实现高速的数据传递。
The USB transfer type is bulk mode which can provides high speed data transfer.
USB通信采用块传输方式，可以提供高传输速度。
The USB transfer type is bulk mode which can provides high speed data transfer.
USB通信采用块传输方式，可以提供高传输速度。
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