SW44 Automatic Multi-Dish Switch - Two Dish Four Receiver Automatic Dish Switch - connect up to four receivers to two dual LNB dishes, or to one DISH 500 dish equipped with two dual LNBs. SW-44-PI Power Inserter is required. 

NOTE: While cascading SW-44 with SW-44A, please make sure that
you cap all the empty ports with our 75Ω terminator to prevent signal loss.

SW-44PI - Power Inserter