In our experience, the best USB flash ... SanDisk offers 128-bit AES encryption and the SecureAccess software ensures maximum protection for data-sensitive files on the flash drive.

The old drive was claimed to have sequential read and write speeds at 2,000MB/s apiece — but not on the Mac, as the Mac doesn't support 20 gigabit USB-C 3.2. For the latest version, SanDisk ...