Brand Desciption: SanDisk is a brand of Western Digital for flash memory products, including memory cards and readers, USB flash drives, and solid-state drives. It was acquired by Western Digital in 2016. As of March 2019, Western Digital is the fourth-largest manufacturer of flash memory having declined from third-largest in 2014. Product Desciption: Secure and reliable portable storage with usb 3.0 performance and high capacities make it ideal for all your photos, videos, music, and other files. The included sandisk secure access software provides password-protection to keep private files secure while leaving the rest of the drive available for sharing, while the retractable design safeguards the usb 3.0 connector when the drive is not in use.