What do SAS, SATA, LFF, and SFF represent in the hard drive?
Hard disk is a type of memory, which belongs to external storage of computers and is a device with huge storage capacity. Its function is to store the data required for computer operation. Hard disk is one of the main storage media for computers, consisting of one or more aluminum or glass discs.
Hard drives include solid-state drives (SSD drives, modern hard drives), mechanical hard drives (HDD traditional hard drives), and hybrid hard drives (HHD, a new hard drive based on traditional mechanical hard drives). SSD uses flash memory particles for storage, HDD uses magnetic disks for storage, and Hybrid Hard Disk (HHD) is a type of hard drive that integrates magnetic hard drives and flash memory. The vast majority of hard drives are fixed, permanently sealed and fixed in the hard drive.
What do SAS, SATA, LFF, and SFF represent in the hard drive?
SAS: Serial scsi interface, compatible with hard drives with sata interface.
SATA: Serial ATA interface, which is the Sata interface for desktop and laptop hard drives we see now.
LFF: 3.5 inches, which is the size of a desktop hard drive we usually see.
SFF: 2.5 inches (note that it is different from a 2.5 inch laptop hard drive).
L. S respectively means large and small. When servers or cabinets use SFF specification hard drives, the main consideration is to increase the disk capacity per unit density, enhance heat dissipation, and reduce power consumption.
