The bi-directional HDMI-DVI adapter is a great solution for connecting from a computer with DVI port to a monitor HDTV or projector with HDMI port or from a computer Blu-ray player TV box or game console with HDMI port to a monitor with DVI port. An HDMI cable (sold separately) is requiredHDMI to DVI adapters for use at home and carry on the road for office monitor or projector connectionsThe DVI to HDMI adapter supports video resolutions up to 4096×2160 and 1080p (Full HD). Audio must be transmitted separatelyHigh grade PVC molding antiskid design endows the adapter with excellent antiskid propertyHDMI to DVI-D adapter with grip treads helps plugging and unplugging; hand-tightened screws provide a secure connection