This is a brand new, four (4) port cable television drop amplifier, just like the ones that your local cable company uses to correct their system's shortcomings. This new model packs a powerful punch in a compact, easy-to-install package! By connecting these fantastic signal boosters to the drop cable coming in from the street, you can increase the signal strength entering your home by up a whopping +7 db per port! If you have multiple televisions or run a cable modem for your internet, this product is recommended. By having four ports come directly off of the amplifier, there is no need for additional splitters, which reduce signal strength. If you are tired of tv pictures that don't seem as clear as they should be, dropped internet connections, or just desire a reliable amplifier to give continuous, steady signal to your home or business, this is for you!