At Critical Infrastructure Group, LLC. Sparks, we are experts of experience providing new and used critical infrastructure equipment. With CI Group, you can buy, sell, rent, and service the following equipment: Uninterruptible Power Supplies (UPS Systems) , Diesel and Natural Gas Generators, Precision Cooling ,Modular Data Centers.

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Our Primary Focus Is To Save You TIME And MONEY With Our IN-STOCK INVENTORY!

Your Source for UPS Systems and UPS Rentals

CI Group offers Eaton UPS systems and UPS rentals, as well as different services such as data center decommissioning . You can easily sell your equipment and remove your equipment with our help. Contact us today to get started.

Our UPS Products

We promise quick delivery, no-risk guarantees, and nationwide coverage for all of our products. Learn about our full inventory here

UPS Systems - Uninterrupted Power Supply

Don’t suffer from the effects of an unplanned power outage. UPS systems are the most reliable backup power sources. We offer different uninterruptible power systems including new and UPS refurbished systems. We also offer UPS rentals. We focus on both new and used Liebert and Eaton UPS systems.

Backup Natural Gas and Diesel Generators

If a UPS system doesn’t cut it, we offer different generators to ensure your business is running when you lose power. We offer a variety of used diesel generators.

ATS - Automatic Transfer Switches

An ATS is essential if you lose power. These switches will transfer the electrical load from one source to another. We offer many used automatic transfer switch (ATS) options. These include products that come with a bypass-isolation switch.

Power Distribution

Power distribution systems offer an all-in-one solution that distributes your electrical power. Our used power distribution systems are powerful and some can support up to 252 output breakers in a single system. We also offer reputable PDU brands such as Liebert.


There are many reasons you’ll need data and power equipment. If you don’t need to invest in new equipment for the long-term, we offer a convenient rental service. We offer UPS rentals, rental generators, and even power distribution rentals.

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We offer the following:

UPS Rental Systems