The Eaton 5115 UPS offers surge protection and line-interactive backup power for entry level servers, small networking devices, point-of-sale (POS) devices and desktop PCs. The 5115 UPS significantly extends battery service life with ABM technology and delivers smooth, continuous power with a pure sine wave output while regulating incoming voltage fluctuations.
I purchased this after hurricane sandy. I had a lot of gear go down during the storm and I needed better backups. This came new and works well. I have had two or three short backouts since I purchased it and it has kept my gear working. I would say get this if you have gear you need to keep running.