TreasLin 300m HDMI Coaxial Extender Over 75ohm Coaxial Cable Rg59 Rg6 Rg7 Rg8 BNC up to 900 FT Lessloss No Delay for TV Projector DVD STB High CompatibilityIdeal for Digital Signage, Home Theater, Boardrooms, Workshop, Seminar, Classrooms, Conference, Gaming, Video Production etc. Up to 984FTThe HDMI over Coax extender support transmission up to 300 meters via RG59RG6RG7RG11 coaxial cable . Coaxial to HDMIThe HDMI over Coax extender turned you crappy coax component cables into HDMI.Easy Solution for Upgrading Old Wiring to HDMI. 1080P@60HzThe HDMI over Coax extender support resolution1080p@60Hz / 1080p@50Hz / 1080p@30Hz / 1080p@25Hz 720p@60Hz / 720p@50Hz 480p@60Hz can not support "i" format,eg.1080i. Quality After-sales ServiceWe promise 30-Day Money Back Guarantee and 12-Month Warranty.