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mSATA SSD - Toshiba

mSATA

Mini-SATA, which is distinct from the micro connector, was announced by the Serial ATA International Organization on September 21, 2009.[30] Applications include netbooks and other devices that require a smaller solid-state drive. The connector is similar in appearance to a PCI Express Mini Card interface, and is electrically compatible; however, the data signals (TX±/RX± SATA, PETn0 PETp0 PERn0 PERp0 PCI-express) need connection to the SATA host controller instead of the PCI-express host controller.

SSD

A solid-state drive (SSD) (also known as a solid-state disk or electronic disk, though there are no actual "disks" present) is a data storage device that uses integrated circuit assemblies as memory to store data persistently. SSD technology uses electronic interfaces compatible with traditional block input/output (I/O) hard disk drives. SSDs do not employ any moving mechanical components, which distinguishes them from traditional magnetic disks such as hard disk drives (HDDs) or floppy disks, which are electromechanical devices containing spinning disks and movable read/write heads. Compared with electromechanical disks, SSDs are typically less susceptible to physical shock, are much more quiet, and have lower access time and latency. However, while the price of SSDs has continued to decline in 2012, SSDs are still about 10 times more expensive per unit of storage than HDDs. Although they are very damage proof, current SSDs have been known to crash very occasionally.

SSDs share the I/O interface developed for hard disk drives, thus permitting simple replacement for most applications.

As of 2010, most SSDs use NAND-based flash memory, which retains data without power. For applications requiring fast access, but not necessarily data persistence after power loss, SSDs may be constructed from random-access memory (RAM). Such devices may employ separate power sources, such as batteries, to maintain data after power loss.

Hybrid drives combine the features of SSDs and HDDs in the same unit, containing a large hard disk drive and an SSD cache to improve performance of frequently accessed data. These devices may offer near-SSD performance for many applications.



This article is licensed under the GNU Free Documentation License. It uses material from the following Wiki article(s) :
* Solid_state_drive