The APC Back-UPS Pro BR900MI is a reliable line-interactive UPS designed for home and small business IT equipment protection. Rated at 900 VA / 540 W, this tower UPS provides battery backup and surge protection through six IEC C13 outlets. Its Automatic Voltage Regulation (AVR) feature corrects voltage dips and overvoltages without draining the battery, extending runtime and ensuring stable power. A clear LCD display presents essential UPS status, including load and battery levels, while audible alarms notify power events and faults. The device supports data-line (network) surge protection and includes a USB port for seamless PowerChute software integration, enabling orderly shutdowns and advanced power management. It uses a user-replaceable sealed lead-acid battery (APCRBC164) that recharges in approximately 12 hours. Compact and durable, the BR900MI fits conveniently in workspace environments, assuring protection for computers, routers, external storage, and entertainment electronics. Specifications include a stepped sine wave output, 230V input voltage, and a typical transfer time of 10 to 12 ms. Certified to meet Australian and international safety and performance standards, this UPS balances efficiency, protection, and user convenience in a single tower form factor.