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USB3.2来了,传输速度是多少？高达2G/S见识一下！

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USB接口大家都很熟悉了，从最开始的USB1.0到USB2.0到USB3.0，现在USB3.2就要来了，其实USB3.2早在2017年就已经诞生了。不过相关设备还没有面世，现在支持USB 3.2 Type-C模式的独立主控和相关设备将在今年面世
 

虽然USB-IF没有给出具体名字和时间，但也不难猜测，能做主控的也就祥硕等几家，而首先应用新型USB主控的必然都是高端主板，预计今年年底就能陆续看到了。

值得一提的是，USB 3.2开始，USB-IF官方只推荐Type-C(简称USB-C)一种接口样式，因为USB 3.2之所以能够速度翻番，最核心的就是使用了Type-C接口的两个Tx/Rx首发通道(x2模式)，而之前的A、B型接口是做不到的。

换言之，USB Type-C将会在未来逐步一统江湖。


 

现在，USB-IF又双叒叕要胡搞了。根据最新公布的规范，USB 3.0、USB 3.1的版本命名都将彻底消失，统一被划入USB 3.2的序列，三者分别再次改名叫做USB 3.2 Gen 1、USB 3.2 Gen 2、USB 3.2 Gen 2×2。

它们还各自有一个市场推广命名，分别是SuperSpeed USB、SuperSpeed USB 10Gbps、SuperSpeed USB 20Gbps。

之所以想出USB 3.2 Gen2x2这样的名字，大概是因为它使用了USB Type-C接口的上下两端全部针脚，速度得以翻番。

如此一来，如果你买主板、移动硬盘、笔记本等产品的时候，厂家宣传支持USB 3.2接口，一定要分清是第几代了，因为它们插着两倍甚至四倍的速度呢，所以大家在选购的时候不要掉进坑里哦。

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