As a large hard disk user, in addition to the demand for storage space. In the past two years, the transmission speed requirements have become increasingly prominent, after all, as a content producer. With the upgrading of video content resolution, the file size of each shot becomes larger and larger. There is a need for fast backup of large files in daily work. If the backup is always made by mechanical hard disk, it usually takes more than ten to tens of minutes to back up hundreds of gigabytes to 1T of materials. Later, considering the efficiency, I started to choose large capacity mobile solid state disk, from the earliest way of using 2.5 inch SSD and hard disk box to simply choose the original brand of mobile solid state products. So