DirecTV Power Inserter SWM ODU Only Model P121R1-03 Output 21V 1.2A Max
Model: P121R1. This used DirecTV PI21R1, 21v power inserter for swim LNBs is in good working condition. his power inserter is required for installation of Ka/Ku slimline dishes with SWM LNB (Low-Noise Block downconverter).