The so-called solid state hard disk (SolidStateDrives), referred to as solid disk (SSD), solid state hard disk (SolidStateDrive) with solid-state electronic storage chip array and made of hard disk, by the control unit and the storage unit (FLASH chip, DRAM chip) composition. Solid state hard disk in the interface specification and definition, function and use of the way with the ordinary hard disk is exactly the same, in the product shape and size is also completely consistent with the ordinary hard disk. It is widely used in military, automotive, industrial control, video surveillance, network monitoring, network terminals, power, medical, aviation, navigation equipment and other fields.
Solid state hard disk has a traditional mechanical hard disk does not have fast read and write, light weight, low energy consumption and small size and other characteristics, at the same time, its disadvantages are also more significant. The price is still expensive, the capacity is low, once the hardware is destroyed, the data is more difficult to recover, etc.; and some people also think that the durability of the solid state hard disk (life) is relatively short.