The servers used by large Internet companies are all American.

Mainly depends on what to use! How big is the workload! 1U configuration is relatively low, suitable for small enterprises or small businesses. 2U is used the most, and it is generally used by large companies that use 2U and 4U for big data storage and calculation! If the data is too large, use a minicomputer, or use 2U and 4U clusters.