2015年6月1日星期一

History of USB Type C

In the CES Asia trade show, one supplier displayed 18 digital products with USB 3.1 Type C port including charger, power bank, data cable, and USB dock etc, nearly covering all products with USB port. In fact, in the past half year, Nokia, Samsung, Apple have already launched their products with this USB Type C port. In the latest Google I/O conference, Google announced that its new Android M operation system can support this USB Type C port.



In fact, USB port was started from 1996 when the USB 1.0 was available. In 2000 year, the USB 2.0 became very popular. Till 2008 year, it was upgrated to USB 3.0. And in 2013 year, USB 3.1 was available, and this is the latest USB version. Every new version of USB means faster transfer speed, and the connector standard is different as well.

In the new USB 3.1 standard, there are three different ports. One is Type A which is the same as used on PC. One is Type B which is adopted by Samsung Galaxy Note 3, and one is Type C.

Till now, only these three types of USB port can support USB 3.1 standard. Regarding Type C port, its max transfer speed is 10Gbps. We know, the max speed of USB 2.0 is only 480Mbps. One another difference is the video transfer, USB 1.0 and USB 2.0 can only support transfering videos up to 1080P. And this USB Type C can support up to 4K resolution video. As we know, now more and more smart phones comes with 2K resolution screen, so USB 2.0 can not meet the demand. That is why USB Type C is so popular nowadays.

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