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USB接口类型介绍 - Acer Community
<main> <article class="userContent"> <p><strong><em>介绍说明</em></strong></p><p>USB接口作为电脑必备接口,堪称万能接口,可USB接口繁多,如何确认USB接口类型,是否支持快速充电;USB Type C接口除了传输文件和给手机充电,是否支持显示、给电脑充电、外接扩展坞? 这边就简单的介绍下如何区分</p><p><br></p><p>如何区分USB 2.0和USB 3.0</p><p>第一种方法:黑色是USB 2.0,蓝色是USB 3.0</p><p><br></p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/1.jpg" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/1.jpg" alt="1.jpg" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p></p><p><br></p><p>第二种方法:通过针脚数量来判别</p><p><br></p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/2.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/2.png" alt="2.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p><br></p><p>第三种方法:通过USB接口旁边的标志判断。比如:</p><p>SS是SuperSpeed的意思,带SS标示即为USB 3.0接口。</p><p>闪电标示代表支持关机充电和快速充电。</p><p><strong>USB 2.0 USB2.0支持大电流输出(1000mA,不支持大电流输出为500mA)</strong></p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/4.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/4.png" alt="4.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p><br></p><p><strong>USB 3.0 支持关机充电 USB 3.0 </strong></p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/9.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/9.png" alt="9.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p><strong> </strong></p><p><strong> </strong></p><p><strong>USB 3.1 Gen1 USB 3.1 Gen1&dp USB 3.1 Gen1&dp&支持PD协议 </strong></p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/8.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/8.png" alt="8.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p> </p><p> </p><p> </p><p><strong>Thunderbolt 3</strong></p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/10.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/10.png" alt="10.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p></p><p><br></p><p>那为何上述图片的USB接口样子不同?</p><p>因为USB接口类型不同:</p><p>USB Type A一般用于个人电脑中,是应用于最广泛的接口标准。上述举例图片的接口全部为USB Type A。</p><p>USB Type B一般用于3.5寸移动硬盘、打印机、以及显示器等的连接。 </p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/3.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/3.png" alt="3.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p> </p><p>而USB Type C由于支持正反插、可选功能多也越来越受到广泛使用。</p><p>比如,若USB Type C支持PD协议,可以给笔记本供电(一般会有标示“</p><p>”),示例图片为蜂鸟SF714-51;</p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/16.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/16.png" alt="16.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p><br></p><p>若支持DP,可以连接外接显示器支持显示(一般会有标示“</p><p> ”,示例图片为蜂鸟SF514-52T;</p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/14.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/14.png" alt="14.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p><br></p><p>若支持Thunderbolt3更是不得了(一般会有标示“带箭头的闪电”,示例图片为掠夺者PT715-51);</p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/13.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/13.png" alt="13.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p><br></p><p>Thunderbolt3(雷电3)是啥?</p><p>“Thunderbolt”(雷电)接口是Intel发布的Light Peak技术,Thunderbolt3的理论传输速度为40Gb/s,且可以支持USB3.1、DisplayPort、PCI Express和Thunderbolt四种协议。</p><p>DisplayPort可支持外接显示功能(一般都标配),PCI Express支持外接显卡扩展坞(高端机选配)。可以说雷电3是Type-C中的大boss了!</p><p><br></p><p><br></p><p>不同的USB规范,速率有何区别?</p><p>USB规范目前有USB 1.0、USB 1.1、USB 2.0、USB 3.0、USB 3.1,USB 3.1又分为USB 3.1 GEN1和USB 3.1 GEN2。</p><p>各USB接口理论传输速度如下:</p><p>USB 1.0:1.5 Mbps(Low Speed)</p><p>USB 1.1:12 Mbps(Full Speed)</p><p>USB 2.0:480 Mbps(Hi Speed)</p><p>USB 3.0:5 Gbps(640 Mbps, Super Speed)</p><p>USB 3.1 GEN1:5 Gbps</p><p>USB 3.1 GEN2:10 Gbps</p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/12.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/12.png" alt="12.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p><br></p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/15.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6029997/uploads/migrated/acer_final/61284/15.png" alt="15.png" height="180" width="320" loading="lazy" data-display-size="large" data-float="none"></img></a> </div> </div> <p><br></p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" 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