Designed to meet the high-availability demands of 24x7 business needs, the on-line rack UPS R12000 XR offers a modular, "N+x" Parallel Redundant architecture, with four 3KVA modules running in parallel. The "N+x" parallel redundant architecture enables you to adapt to growing power requirements, and keeps your systems powered and protected against bad power. ??The UPS R12000 XR also incorporates a unique patented wireless paralleling technology that eliminates system-level single point of failure. Both the logic and the electronics are housed in the individual 3kVA module, and not in the enclosure, as with most competitive UPSs. Combined with unsurpassed power density, superior batteries, and Enhanced Battery Management, the fault-tolerant UPS R12000 XR helps customers build a reliable power infrastructure.