From texts to images and videos; from virtualization to cloud, we are in 5G age now. So does the AI, block chain, IoT, big data, and the related services are getting mature. The workload for servers is not only become massive and complex, but the requirements for performance and speed is greater than ever. The shipment of servers in 2019 was about 12 million units, with the COVID-19 epidemic, there has been a higher demand for remote video, remote office, online audio-visual services and online shopping ever since.