Hynix is the king of leakage, and the data retention ability of flash memory is seriously insufficient, which is easy to produce bad blocks. The font used by Hynix computer has a high failure rate.

Western Digital Hard Disk (WD) is a hard disk produced by Western Digital Company. Western Digital Corporation is a world-renowned hard disk manufacturer. The company was founded in 1970, and 1988 began to design and produce hard disks.

Headquartered in Forest Lake, California, USA, it is one of the oldest hard disk manufacturers and one of the founders of IDE interface. WD has about 23,000 employees worldwide.

In particular, 2.5-inch mechanical disks are divided into thick disks and thin disks. Early mechanical disks were generally thick disks for technical reasons. Later, with the development of technology, the thickness of the mechanical disk was made thinner. If you change the mechanical disk, you should know whether your hard disk is thick or thin. If it is not installed correctly, it will not be installed due to limited hard disk space.