Editing Uninterruptible power supply (section)

==Form factors==
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Smaller UPS systems come in several different forms and sizes. However, the two most common forms are tower and rack-mount.<ref>{{cite web|website=TrippLite.com|title=UPS Buying Guide|url=https://www.tripplite.com/products/ups-Buying-Guide}}</ref>

Tower models stand upright on the ground or on a desk or shelf, and are typically used in network workstations or desktop computer applications. Rack-mount models can be mounted in standard 19-inch rack enclosures and can require anywhere from 1U to 12U ([[rack unit]]s). They are typically used in server and networking applications. Some devices feature user interfaces that rotate 90°, allowing the devices to be mounted vertically on the ground or horizontally as would be found in a rack.