The traditional caching strategy is primarily based on memory cache, using read / write speed as the target, with the emergence of SSD SSD, traditional cache design ideas no longer applicable, due to the read and write characteristics of Solid state hard disk storage media Flash, if Applying traditional cache design directly in SSD, not only does not achieve the ideal effect, but also causes the fast exhaustion of solid-state hard drive. Why do many industries recognize M2 NGFF ENCLOSURE?

　　1, the form is diverse

　　Solid state drive SSD is a new hard drive in recent years, which is mainly divided into flash-based solid-state disk and DRAM-based solid-state disk. Based on flash memory solid-state hard drive, as the name suggests, FLASH flash memory is used as a storage medium, instead of traditional mechanical storage methods, no longer use traditional hard disk access methods, etc., there is no mechanical structure, and flash memory-based solid-state hard drive mainly uses NANDFLASH features. The read and write function is implemented by block erase and writing, so its efficiency is dependent on the development of flash technology. Compared to traditional mechanical hard drives, flash-based solid-state hard drives have the advantages of low energy consumption, strong earthquake resistance and high stability. In addition, flash-based solid state drives can have a variety of appearances, including USB flash drive, memory card, microfrint, etc.

　　2, power consumption

　　It is lighter, can be used in most mobile devices, the supportability of the equipment, strong earthquake resistance, low temperature resistance, and its reliability is much higher than the traditional mechanical hard drive. The SSD solid state drive has almost no noise. Due to its special media, the heat generation is very small, the heat dissipation is good, and the energy consumption is low. Since the read and write performance of the Flash medium is much higher than the mechanical disk, the SSD solid state hard disk exhibits strong reading and writing performance, especially for random read and write, because there is no time, the speed is much higher than the mechanical disk.

　　Flash-based M2 NGFF Enclosure can be applied in a variety of environments, but due to the number of extensions of the Flash medium, its use is not very high, and it is more suitable for personal users. DRAM-based solid-state drives mainly use DRAM as storage media, due to the use of DRAM, the range of use is narrow. It mainly follows the design of traditional mechanical hard drives, which can be set and managed by most file system management tools.

　　M2 ngff enclosure https://www.fideco.net/USB-gen-2-type-c-m-nvme-ngff-ssd-enclosure.html