Buy USB flash drives with large capacity, 64G and above. According to the query of relevant public information: U disk is the abbreviation of USB (USB flashdisk) disk. According to the homonym, it is also called USB flash disk. The main purpose of U disk is to store data. There are many music examinations and the required U disk capacity is large, so Buy the USB flash drive of Cunyi Kao Music with large capacity, 64G and above.