The main storage capacity of Shenwei Taihu Light is equivalent to 500 national libraries. Shenwei Taihu Light is a supercomputer in China, with a main storage capacity of 1.5PB, which is reported to be equivalent to the storage capacity of 3 million ordinary movies and the collection of 500 national libraries. The storage capacity of Shenwei Taihu Light is an aspect of supercomputer, which has powerful computing power and high-speed data transmission capacity, and can be used for various scientific calculations and big data processing.