4-Port Cable TV Splitter Signal Booster/Amplifier with Active Return Zero Signal Loss and VoIP Telephone/Modem Bypass Feature Compare to Electroline EDA-FT08300. Provides 4 amplified output ports with Active Return. All ports are LOSSLESS both forward and reverse. This is a true lossless 4-port splitter. MODEM port provides a connection point for VoIP equipment, so that a power failure will not affect services. Compatible with all standard and digital Cable TV services, including the "Triple Play" phone service. Unique mounting design allows for horizontal or vertical mounting in any space. 5-year warranty.