Mobile hard disk interface problem

Flat ends, 2.0 standard, high transmission rate; One end and one small mouth may be the standard of 1.0, which will affect the speed, because we haven't seen the real thing yet, and we don't rule out the possibility of USB-IEEE 1394 wiring. Although the standard of IEEE 1394 interface is very fast, it is basically the same as USB at both ends because of the bottleneck of USB at the other end. What we need to consider is whether it is convenient for your computer to connect to USB or IEEE 654. It doesn't matter if it is better, as long as it is convenient to use.