LCD Display - Shows UPS operating status Rack/tower installation - -2U rack height- or wall mounting with optional kit Minuteman SentryPlus Software - SentryPlus auto-shutdown and monitoring software is included with every unit. RS-232 and USB Communications - No special USB drivers are required for USB communications as unit is automatically recognized by Microsoft Windows as HID-compliant device - similar to a mouse or a keyboard. SNMP compatible - Each PRO-RT unit can be managed on a network with the addition of an optional SNMP management card. Fax/Modem/Network Line Protection - The PRO-RT UPS provides a low cost means of protecting fax/modem/network lines. RoHS Compliant - All PRO-RT products are manufactured using non-hazardous materials making them safer for the environment and a green-friendly addition to any data center -Excludes lead acid batteries-. Warranty - Each PRO-RT UPS system is covered by a three-year parts and labor warranty and 100,000 dollars Minuteman Platinum Protection Plan -U.S.A. and Canada only-.