CES SanDisk has taken a leaf from external hard drive makers like Western Digital and Seagate, and added an auto-backup button to its USB Flash drives.

SanDisk's Ultra Backup: is 64GB enough?

Since the SanDisk Ultra Backup USB product line only runs to 64GB for now, we're not sure how useful they'll be for the average user's hard drive, which is now surely well past 128GB in size for laptops and a lot more than that for desktops.

That said, the drive does encrypt backed up data with both password protection and hardware-based 128-bit AES encryption.

The drives are due to go on sale in April in the US for $40 (8GB) to $200 (64GB). There's no word yet on UK availability and pricing. ®

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