Desktop UPS provides battery backup support with automatic voltage regulation (AVR) for your home/office network system or home theater. Protects equipment against blackouts, brownouts, overvoltages, surges and line noise Keeps AC power running during blackouts to allow time for file saves and safe shutdown 12 NEMA 5-15R outlets power and protect PC, home theater or digital signage equipment Home-friendly alarm remains silent in backup mode, sounding only when imperative High >96% efficiency with low BTU ratings saves electricity and lowers your energy costs