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Another exciting bit of representative placeholder content. This time, we've moved on to the second column. USB-A, B, or C only refers to the physical design (or shape) of the ports and connectors. USB-A is in a flat and rectangular shape. USB-B comes in a variety of designs, and the standard one is a bit squarer. Moreover, USB-C has a more compact, rectangular shape with rounded corners. USB Type-B连接器用于大型设备，最常用的是打印机设备，由于这些是相对较大型的连接器，因此在便携式消费设备中很少见到它们。除了这个外，在数据储存和采集、视频传输、游戏硬件接口上也能看到它的身影。

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Article intéressant qui résume bien l'histoire et l'avenir de l'USB et plus généralement des chargeurs pour les néophytes. C接口，同时USB4采用了Thunderbolt协议（俗称雷电接口协议，是由Intel主导开发的接口协议，具有速度快，供电强，可同时兼容雷电、USB、Display Port、PCIe等多种接口/协议的特点），因此，支持USB4标准的Type-C接口也是可以兼容雷电接口的。如此看来，Type-C接口已是大势所趋了。 5、USB 传输标准与接口 USB Mini are further divided into two variants: USB Mini A and USB Mini B. These are smaller counterparts of Type A and Type B USB connectors. You will likely find USB Mini in portable cameras, game controllers, and some old mobile phones. USB Micro A和Type-B根据支持的USB标准不同，又可以分为USB 2.0和USB 3.0标准USB接口。根据接口的颜色，我们很容易区分该接口是支持USB 2.0还是支持USB 3.0的。Type-A型接口也是我们日常生活中最常见的USB接口，广泛应用于鼠标、键盘、U盘等设备上，Type-B型则常用于打印机、特殊显示器等设备上。 2、Mini USB接口USBが普及する以前は、パソコンに接続される周辺機器（マウス・キーボード・プリンター・モデムなど）にはさまざまなポートが使われており、それぞれケーブルを用意しなければならないという手間がありました。 For more information about the Cisco Product Warranties, go to: https://www.cisco.com/en/US/products/prod_warranties_listing.html. Like Lightning and MagSafe, the USB-C connector has no up or down orientation. Line up the connector properly, and you never have to flip it over to plug it in; the "right way" is always up. The standard cables also have the same connector on both ends, so you don't have to figure out which end goes where. That has not been the case with all the USB cables we've been using for the past 20 years. Most of the time, you have different connectors at each end. Deux ans après la mise en service de la solution lightning d’Apple, en 2014, l’USB-C voit le jour. Si la quantité de données transmise reste d’abord la même, ce connecteur a l’avantage d’offrir un courant deux fois plus intense (3A) que son prédécesseur, mais, surtout, d’être réversible et donc de pouvoir être branché dans n’importe quel sens (que ce soit celui de la prise ou du câble complet). Confused yet? Further complicating matters: The number scheme around USB 3 has been in flux, which has made references to these ports something of a swamp. Until recently, many USB-C ports carried the USB 3.1 label ("USB 3.2" was not yet a thing) in Gen 1 and Gen 2 flavors, and some spec sheets continue to reference the older name, along with SuperSpeed branding. In a confusing twist, the USB-IF decided to eliminate the use of "USB 3.1" in favor of these various flavors of USB 3.2, as outlined below in this handy decoder chart...