Tripp Lite SU750RTXL2U 750VA 600W UPS Smart Online Rackmount 100V-120V USB DB9 2URM RT, 6 Outlets

This UPS is easy to setup and has worked flawlessly through several power outages in my area. I recently had to run this unit off of a generator for a week after Hurricane Sandy and the unit dealt with the less-than-stellar power provided by the generator without issue. However, just be aware that the unit is loud. This is quite normal for "double conversion" or "online" UPS units where the battery powers any devices connected to unit and street power is used only to charge the battery. The inverter required to do this normally requires a decent sized fan and is noisy in an of itself. In an isolated wiring closet or server room this is no problem. However, for someone who is planning on using this as a high end workstation backup unit in their regular work area, this would be a problem.-------------------------------------Update November 2020I originally purchased this UPS in October 2009. It has been going strong for 11 years with one battery replacement (and another coming up soon). As a unit for a small business, I would still continue to recommend this unit if for nothing else than its longevity.

Purchased this item on July 23, 2015 Totally dead Aug 17, 2017. If it would let me put no stars I would. Does not power up and killed the extra battery packs attached. Will not buy tripp lite again.

Top of the line protection. Excellent product, but fan is very loud.great if used in dedicated equipment room.Not to heavy & comes with rack mount accessories.

Happy with the product receive it quickly