Compatible with DIRECTV receivers D12,H20,H21,H23,HR20,HR21,R22,HR22,HR23,R16,H25,H24,HR24, HR34, HR44, HR54, C31, C41, C41W, C51, C61 and H44 Reverse band LNB to support 4K programming Only one line required for the DVR or service Certified to work with DIRECTV PROGRAMMING FROM SATELLITES 101,99,103 4 WAY Coaxial SWM SPLITTER