Introduce the slogans of SAS, SATA, LFF and SFF in the hard disk drive

Hard disk is one of the most important memories in computer. Most of the software that your computer needs to run properly is stored on your hard disk. Because the hard disk has a large storage capacity, it is different from memory and optical disk. Hard disk is a hard disk based storage device used in computers. It stores and retrieves digital data on a flat magnetic surface. The following describes SAS in hard disk; SATA; LFF; What does the SFF slogan mean.

SAS: serial SCSI interface, which is compatible with SATA interface hard disk.
SATA: Serial ATA interface, which is the SATA interface of desktop and notebook hard disks we see now.
LFF: 3.5 inches, which is the size of desktop hard disk we usually see.
SFF: 2.5 inch (note that it is different from the 2.5 inch notebook hard disk).