The CyberPower 880 surge suppressor is a Computer/Audio/Video Grade unit and provides powerful surge suppression with a rating of 2800 Joules. It is equipped with a RJ-11 port that protects phone/fax/modem/DSL equipment and also a RG-6 gold-platted coax port that is perfect for your cable modem cable TV lines and DSS equipment. EMI/RFI shielding will rid your equipment from any harmful interfaces and MOV technology insures the protection of all connected electronics and the surge suppressor itself. CyberPower fully stands behind its products with a lifetime product warranty and Connected Equipment Guarantee of $200 000.