Specifically depends on your needs, to provide reference:
1. 64GB - first experience SSD, only put the system and small software, the price of about 400 yuan?
2. 128GB - mainstream users, you can put the system, commonly used software, often play the game, the price ranges from 650-800 yuan?
3. 256GB - high-end users, suitable for all other than movies and software installation image, other than the SSD users, the price is not cheap, generally in the 1200 yuan or more, some high-end products price in the 1500 yuan or more.?
4. 512GB or higher - suitable for servers, audiophile gamers or users with particularly demanding hard disk performance requirements, the price is generally more than $2000.
Solid State Drives (Solid State Drives), referred to as solid state disk, solid state hard disk (Solid State Drive) with solid state electronic storage chip array and made of hard disk, by the control unit and storage unit (FLASH chip, DRAM chip) composition. Solid State Drive in the interface specifications and definitions, functions and methods of use with the ordinary hard disk is identical, 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 terminal, electric power, medical, aviation, navigation equipment and other fields.
The operating temperature range of its chips is wide, commercial-grade products (0~70℃) industrial-grade products (-40~85℃). Although the cost is higher, it is gradually popularizing to the DIY market. Because SSD technology is different from traditional hard disk technology, it has generated a number of emerging memory vendors. Manufacturers can build SSDs by simply purchasing NAND memory and matching it with appropriate control chips. The new generation of SSDs commonly use SATA-2 interface, SATA-3 interface, SAS interface, MSATA interface, PCI-E interface, NGFF interface, CFast interface and SFF-8639 interface.