In the world of information technology, time is not in the spotlight, and it is not surprising that many users are interested in the question: how to choose an HDMI cable to connect a particular device (Smart TV, laptop, tablet)? It is sometimes very difficult for a customer to find the right direction in a wide range and numerous versions of HDMI cable. Which HDMI cable is the best for connecting several devices, we will try not to tell you in detail in this article. You can find more information here at https://whatever-tech.com/best-fiber-4k-hdr-hdmi-cable/. Despite the fact that the HDMI interface is already firmly established in our lives, some users are still wondering the same question: what is the purpose of the HDMI cable and what is hidden under this abbreviation?
HDMI (High Definition Multimedia Interface) – makes it possible to transmit high-resolution digital video data and multi-channel digital audio signals with copy protection. It should be noted that HDMI has several main advantages over DVI digital video interface. Firstly, the HDMI interface is smaller in size, and secondly, the interface is protected by copy protection technology. They use HDMI cable to connect computer to monitor, TV, projector; digital video camera to computer, TV, DVD player to TV, as well as to connect Blu-ray player, game consoles (PlayStation, Xbox) and other digital devices.
How to choose HDMI cable
Many of you have wondered: how long are HDMI cables? In the specification about the maximum size of the “cord” HDMI information did not meet, but the length of the standard sizes can be 0.75, 0.8, 1, 1.5, 2, 2.5, 3, 5 and 10 meters. The length of the cable, which is more than 10 meters of standards is not regulated. So, when determining the length of cable HDMI should not always be guided by the rule to take with reserve. For example, the cable length of more than 10 meters may be distorted and attenuated signal, which eventually affects the quality of the image.
However, the quality of the signal transmission depends not only on the size, but also on the material of which the cable is made. For example, an HDMI category “Standart” cable (version 1.4, resolution 720 x 1080 p, 75 MHz) is made of 24 AWG oxygen-free copper (0.205 mm per square meter), and a category “High Speed” cable (version 1.4, resolution 1080 x 2160p, 340 MHz) is made of 28 AWG (0.081 mm per square meter) copper. These figures show that the quality of data transmission is highly dependent on the material of which the conductors are made.
It is worth noting that if the HDMI cable category “Standart” is made qualitatively, it is able to transmit a signal up to 15 meters within its type. If the length of the cable will exceed 15 meters or after the connection of digital devices will be observed loss of image quality, in this case it is recommended to use signal amplifiers. As you understand, the task of high-definition cable is to bring all the necessary information from the source to the receiver without distortion of the signal. According to some manufacturers, an HDMI cable that contains expensive metals has a higher data rate and less interference.
However, the presence of expensive metals and the quality of manufacturing in general affects the final cost. Therefore, the choice of HDMI cable should be based on its obligations in order to save money. If you plan to transfer data from devices (DVD, satellite receiver) through the cable, where the flow of information is not great, then you will be quite satisfied with an inexpensive HDMI cable. But for watching 3D video, where the flow of information is very high, manufacturers recommend using an HDMI cable made of high quality and expensive materials. Whether to buy a cable made of expensive metals or not, we will take a look at the final part of the article.