MCL second? The life span is twice that of TLC (in theory), and the speed is a little faster than TLC. At present, civilian hard disks are more popular.

TLC finally? It's just come out. Is it controversial? But the price is quite cheap? (At least when I bought it, 120G was several hundred cheaper than MLC. )

But now the price has risen to almost the same as MLC, and there is no cost performance.

At present, it is recommended to buy MLC solid state drives with similar stability. Can shake, can shake, and even fall.

But not a mechanical hard drive? That will be easily damaged.

Solid-state hard disk (SSD) is a hard disk composed of an array of solid-state electronic storage chips, which is composed of a control unit and a storage unit (FLASH chip and DRAM chip). Solid-state hard disk is exactly the same as ordinary hard disk in terms of interface, function and usage, and the product shape and size are also exactly the same as ordinary hard disk. Widely used in military, vehicle, industrial control, video monitoring, network monitoring, network terminals, electric power, medical care, aviation, navigation equipment and other fields.

The working temperature range of the chip is very wide, including commercial products (0~70℃) and industrial products (-40~85℃). Although the cost is high, it is gradually spreading to DIY market. Because solid-state hard disk technology is different from traditional hard disk technology, there are many emerging memory manufacturers. Manufacturers only need to buy NAND memory and cooperate with appropriate control chips to manufacture solid-state hard disks. SATA-2 interface, SATA-3 interface, SAS interface, MSATA interface, PCI-E interface, NGFF interface, CFast interface and SFF-8639 interface are widely used in the new generation of solid state drives.

Solid-state hard disk based on DRAM: As a storage medium, DRAM has a narrow application range. It imitates the design of traditional hard disk, can be set and managed by file system tools of most operating systems, and provides industrial standard PCI and FC interfaces for connecting hosts or servers. The application mode can be divided into SSD hard disk and SSD hard disk array. It is a high-performance memory with long service life. The fly in the ointment is that it needs an independent power supply to protect data security. DramsSSD is a relatively non-mainstream device.