Eagle Aspen DTV3X4 DirecTV-Approved Min-Max 3-In/4-Out Multiswitch Expands Single Satellite DIRECTV System To 4 Receivers Combines Off-air Or Cable Tv With Satellite Signal To 1 Cable Per Tv Indoor/outdoor Use DirecTV-approved multiswitch for connecting DirecTV satellite dish with up to 4 receivers Expands DirecTV service to several TVs at once Additional LNB input and antenna input for connecting cable and antenna feeds No power supply needed; receives power from satellite receivers High-quality die-cast case; designed for indoor or outdoor use