The chassis used to be one of the most unnoticed parts of the computer, and there was a time when most users chose the chassis as long as they looked good. But with the introduction of the media in the chassis technology in depth, many users, especially DIY users began to seriously treat the choice of chassis. This is illustrated by the hot selling of some brand-name high-end products. However, the content of these technologies is often not comprehensive, too much focus on the material, process and other details, but for some really important design issues have little to talk about, and these are often the current chassis products commonly existing deficiencies. So now many consumers choose the chassis to look at the first appearance, then will focus on the selection of the chassis material, interior space design, etc.