Apc BE550G-AZ Back-ups Es 550va 230v 330w/rj45 Protection, Output Power/Configurable Power 330 Watts / 550 VA, Output Voltage 230V, Input Frequency 50/60 Hz +/- 5 Hz (auto sensing), Cord Length 1.83 meters, Black. Apc provides the ability to adapt the UPS for optimal performance in specific power environments or generator applications. Increases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair.