
First of all, you have to know total capacity the UPS is supposed to support, the expected run time without AC power, and the right voltage.
Then, use search application on Tripp-Lite's "Product Selector Guides" to narrow down the specifications of UPS device to match with your requirement.
Next, add the total load of devices that needed support from UPS into the search field. Also, fill up the required power of single devices to find the result of total power load need.