Tripp Lite's intelligent, rackmount UPS system protects servers, networking accessories and telecommunications equipment from blackouts, severe voltage fluctuations and transient surges. Versatile housing supports rackmount, wallmount or under counter installation. Compatible with 2 or 4 post relay racks and enclosures. True sine wave output at all times offers guaranteed compatibility with all equipment types. Includes a total of 6 outlets, 8 outlets on the SMART1500RM2U Model. Includes slot for internal SNMP/web card, plus 1 DB9 and 1 USB enhanced monitoring ports for unattended shutdown, remote control and monitoring of UPS system and power data. Compatible with included PowerAlert UPS monitoring and unattended shutdown software and optional Watchdog automatic system service restore software.