Today, USB Alliance released a new USB specification, which is not named as USB 4.0, the contrary, the new name for USB 3.1, means that the new specification will continue to be compatible with the older USB 3.0 and USB 2.0 interface.

The new USB 3.1 interface with faster speeds, the bandwidth capacity of up to 10Gbps, is twice the old USB 3.0 interface, USB 2.0 for 20 times, with the first generation of Intel dominated by the same speed Thunderbolt interface. It uses a more efficient data encoding technology, USB 3.0 compatibility with existing software and device hardware protocol stack, the existing USB 3.0 interface and data lines were well supported.

It is reported that, with the full HD, and even the popularity and development of ultra-high-definition video formats, large file transfer speed has become particularly important to develop greater bandwidth USB port USB alliance has become an urgent problem, and the USB 3.1 standard The emergence of USB interface to maintain a leading edge Intel Thunderbolt interface, and the latter's second generation Thunderbolt 2 already supports transfer rates up to 20Gbps and 4K resolution video, and also have cooperation with Apple Mac, strong performance.

However, the introduction of the new USB 3.1-compliant devices is not clear when it will be launched. The coalition has also been in preparation for USB product development plan, is expected to begin in August 21, called the developers involved in the development work, the introduction of more powerful related products as soon as possible