The Rackmount UPS is a high-density power quality and backup power protection solution ideal for servers, storage systems, network equipment and other critical devices. Delivering basic surge protection and backup power, the Rackmount UPS additionally offers the best UPS power protection.UPS protects your data by supplying reliable power, in Rack-optimized form factors for space constrained business critical applications.IT administrators can provide safe system shutdown and advanced UPS management (All major operating systems supported). Connectivity is through serial or USB port (USB not standard on all models). Additional manageability is available through the SmartSlot, an internal accessory slot that allows you to install optional accessories to enhance the performance of your UPS.