It is recommended to open it and mail it. Some expensive and easily damaged but small things can be brought by yourself, such as motherboard, graphics card, hard disk, CPU, chassis power supply and monitor. They are not afraid of collision, so they can be packaged and protected, and can be mailed. If it is a whole machine consignment, it is recommended to insure postal products by the way. In other words, if they are damaged in transit, they will be compensated according to the insured price. The general price is from 70 yuan to 150 yuan, including packaging and insurance, and 2 yuan is one catty more. Different companies have different prices, the post office is much more expensive, and 5 yuan has an extra kilo. I mean, all ordinary mail.