Looking for a reliable and efficient battery backup unit for your Belkin residential gateway? Check out this gray unit with passive cooling and LED display. It is compatible with 12V voltage and is designed specifically for Belkin products. With its audible alarm and AVR (Automatic Voltage Regulation), you can be sure that your devices are safe and protected from power outages. This unit is a must-have for anyone looking to ensure uninterrupted power supply to their devices.