We always feel frustrating about the speed of your computer, it means time to upgrade your machine. Now, instead of buying those expensive CPU or Graphics Cards, the hard drive is a good choice. As we know, all data of your computer is extracted from the hard drive, so, obviously, the speed of the hard drive can have a big impact on the speed of your computer. Commonly known, HDDs access data by spinning their disks. Unlike that, SSDs can be up to 100 times faster as data can be accessed instantaneously from their flashes. Without the mechanical spinning, SSDs will be much quieter and lower power consumption.
when we talk about SSDs, there are many type of it. if you do not care about money you can choose some famous brand, such as, Samsung, Intel. if you want high quality and reasonable price SSD, I recommend you to buy SanDisk SSD or Hectron X1 SSD.
There are also different GB, it depends on you , if you only need small capacity to improve the performance of you computer, 60GB SATA3 it ok, the brand HECTRON or GLOWAY have the small capacity SSD, if you want 120GB, 240GB or more ,you can choose Sandisk, Kingston or more.