This multi switch allows for distribution of up to 16 coax outputs, all through two coax cables using SWM technology. What used to be a mass rewiring, can now be accomplished through two simple coax cables. Traditionally satellite needs DIRECTV lines from dish to the receiver. Each of the two outputs has the capacity to be split up to eight times once inside the building. Supports up to 16 DIRECTV satellite tuners. Compatible with HR24, H24, HR23, H23, HR22 HR1, H21, R16, D12 and H20 with. Die-cast housing is suitable for both indoor and outdoor use. Does NOT come with power supply.