什么是 USB Type-B

LILINGYU
What is USB Type-B
属于标准 USB 接口的第二种类型的接口是 USB Type-B，它通常用于较大的外围设备，例如打印机和扫描仪。考虑到这类设备对供电的要求较高，因此不断配备额外的供电端口。至于内部结构，USB Type-B也有四个引脚，实际上USB-Type B的电气特性与USB-Type A相同。USB Type-B设计成这样的形状是为了防止用户使用USB Type-B。错误地使用接口。如此设计，大概是为了防止产品用户因错误使用接口而造成短路。 有趣的是，USB Type-B升级到USB 3.0时代时出现了一个非常尴尬的情况。 在介绍Type-A接口时，我们发现初代Type-A接口内部的空间非常充裕，所以多余的5个针脚直接“挤”到了原来设计的接口中，没有做任何改变USB Type-A 面的尺寸或外观。反观USB-Type B，或许最初的设计者根本就没有考虑到它会更新，狭窄的内部空间让多余的5个针脚无处安放。因此USB 3.0版本的Type-B被赋予了一个“皇冠”来容纳五个引脚。

Become a Vention Distributor

Vention is looking to partner with experienced distributors to help bring our innovative audio visual and electronics products to more customers around the world.

As an authorized Vention distributor, you gain access to our full product catalog with exclusive distributor pricing. You also receive marketing assets, training on Vention products, and the potential to exhibit at major trade shows.

We seek established distributors with expertise in consumer electronics distribution and a strong sales network. Distributors must provide pre-and post-sales support to retail partners in their territory.

Interested in becoming a Vention distributor in your region? Contact us below to explore partnership opportunities. We look forward to hearing from you.