Sandisk Ultra 256GB, USB Flash Drive, USB 3.0, up to 130Mb/S Read
Capacity Up to 512GB Up to 512GB Up to 256GB Up to 1 TB Up to 1 TB. Manufacturer SanDisk. USB 3.0 port required. Based on internal testing; performance may be lower depending on host device. 1MB = 1,000,000 bytes.