CyberPower CyberShield CS30U12V-20 DC Power Supply - 2 Day Recharge - 110 V AC, 220 V AC Input - 12 V DC Output

CyberShield keeps network communications, including telephone, up and running during power outages. The unit functions as a battery backup supplying continuous 12VDC to locally power network interface units, cable telephony modems, wireless base stations and fiber to the home interface modules or integrated access devices.