APC Smart-UPS RT (On-Line) Versatile, high density power protection for computer networks, telecommunications, and industrial applications. The Smart-UPS RT is based on the field proven, industry leading Smart-UPS functionality, but features double conversion on-line topology, which delivers tight voltage and frequency regulation, zero transfer time to and from battery, and input power factor correction. The Smart-UPS On-Line is capable of supporting loads from 1 kVA to 20 kVA in a rack/tower convertible chassis. The 6 kVA, 8 kVA, and 10 kVA models feature unity output power factor enabling them to support power-hungry blade servers or heavily loaded equipment racks. When business- critical systems require runtime in hours, not minutes, Smart-UPS On-Line can be configured with multiple battery packs to meet aggressive runtime demands. The included PowerChute Network Shutdown management software provides unattended graceful shutdown of network operating systems. Models 5 kVA to 10 kVA include an integrated network management card for remote management.