The Network Extreme Rack Tower Series (NXRT) Uninterruptible Power Supply (UPS) eliminates questions about physical form with the unique ability to tower-mount, rack-mount and wall-mount. Users can feel confident that the NXRT will fit virtually anywhere in their network. The NXRT Series is comprised of four models: 1000VA, 1500VA, 2000VA and 3000VA, providing network grade power delivered via on-line double-conversion technology. A three year electronics warranty provides "peace of mind" that reliability has been engineered into the product line. Virtually Infinite Runtime via the self-charging extended battery packs means that you can increase the runtime as much as desired. The NXRT Series UPS is the perfect choice from critical business servers, point of sale equipment, telephony and data networks.