Model Number: SP08AA_SWUSBTV Brand Name: Liscien Key Specifications/Special Features: Surge protector:The surge protector is designed to protect the high-tech electronic equipment from damage caused by dangerous surges.EMI/RFI noise filter:The filters are designed to eliminate the electromagnetic and radio frequency interference, which is very important for sensitive high-tech electronic equipment such as computers.What is EMI/RFI?EMI and RFI are caused by heavy duty home equipment, fluorescent lights and radio signals picked up by home wiring. They may cause interference in expensive equipment, such as TVs and also poor performance in computersWhat is surge voltage?Surge voltage found in AC power line, Telecommunication and Antenna/CATV/MATV/Coxial lines are caused by the following:-By direct lightning.-By grounding fault-From magnetic induction-By induced lightning
-By switching operation
-From electrostatic induction