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Discover LudwigThe phrase "a backup device" is correct and usable in written English.
You can use it when referring to a device that serves as a secondary option for data storage or recovery.
Example: "In case of a system failure, make sure to have a backup device ready to restore your files."
Alternatives: "redundant storage" or "secondary device".
Exact(22)
But as a backup device, it's a little weak.
Q: Your article erroneously refers to RAID as a backup device.
Important: IS&T strongly recommends that you register a backup device for 2-factor authentication.
I lost my two-step authentication device and don't have access to a backup device.
When you are done, your PC can rely on the external drive for extra storage or as a backup device.
You are strongly encouraged to set up a backup device in case your primary device is lost or unavailable.
Similar(38)
For those people who had an urgent need to access electricity, the acquisition of a new backup device (engine-generator) became a sensible option.
Right now, My Book Live is a practical storage saver and a great backup device.
He has a complex disaster recovery plan in place that requires the transfer of large amounts of data throughout the day to a central backup device.
Once you get to campus, you can also get a YubiKey for free from IS&T, which is a particularly good backup device, since it doesn't require Wi-Fi or celluar service.
I might be a Mac user, but I'm very pleased with my Android phone, which I can now use to sync all my important files and use it as a real-life backup device.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com