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Losing client files, invoices or project archives can set a small business back weeks, and sometimes it never recovers the data at all. A dependable backup device is the cheapest insurance a company can buy. In 2026 the choices span a wide spectrum: network-attached storage that backs up every workstation automatically, desktop RAID arrays that mirror themselves, and pocketable SSDs for off-site copies. This guide compares five backup devices that fit different sizes of business, from a one-person studio to a growing office with dozens of endpoints.
A good starting rule is the classic 3-2-1 strategy: three copies of your data, on two different types of media, with one copy kept off-site. The picks below make that practical. A NAS handles the always-on, automated layer; a desktop RAID drive provides a second local copy; and a fast portable SSD makes rotating an off-site copy painless. We combined verified manufacturer specifications with consensus from independent reviews at TechRadar, NAS Compares and StorageReview to build this list.