The main purpose of using an HDMI cable is to eliminate the use of having different connectivity cables to transmit audio video signals. Using an HDMI cable, connecting a DVD player, set top box or gaming console to a video monitor or AV receiver becomes quite easy.
The use of a single HDMI cable also helps to get rid of a maze of AV cables that are found behind most home entertainment centres. This is not the same with DVI cables that only supported digital video. For transmitting audio data, separate cables were required.
Top features and advantages of HDMI cables
HDMI cables transfer uncompressed digital video and audio. This allows users to enjoy the best possible digital quality without any signal degradation through the decompression/compression process. Another important benefit of HDMI technology is the fact that is backward compatible with DVI. All you need is a DVI to HDMI cable adaptor.
HDMI technology also supports 2-way communication between the display device and the video source. This allows new functionality like automatic configuration. Typically, DVI interconnects support cables of up to five metres. On the other hand, HDMI technology is specially designed to house large copper cables of up to 15 meters without using repeaters or HDMI amplifiers.
HDMI cables are available in two different categories; category 1 and category 2. While category 1 supports 74.5 MHz (720p60 and 1080i60), category 2 offers support for up to 340 MHz (1080p60 and 2160p30). All these features make HDMI cables the best connectivity solution.