Just like our freestanding UPM products, each of these ETA uninterruptible power managers provides up to 6 minutes of reserve power during a power outage. In addition to their low-distortion sine wave inverter, each model contains three important elements — a high-energy surge diverter, a low-impedance isolation transformer, and a power line noise filter. ETA’s integrated design provides ultra-pure uninterruptible power to ensure the cleanest possible power for digital audio or video workstations, mixers and digital signal processors. Your systems receive total protection packaged in a convenient 19” rackmount enclosure that requires only 3U of rack space.