So, how to recognize distinguish between good and bad
HDMI CABLE?
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1, version.
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To be honest is that, buy back can not use the thing, it must not be good. HDMI cable on the market in addition to 1.1, 1.3, 1.4, 2.0 a few versions, there are such as HDMI-a, HDMI-b, HDMI-c these interfaces, more versions, compatibility will need to pay attention to, generally backward compatible, that is to say, the new version of the HDMI2.0 can be compatible with the 1.4, but the 1.4 is not fully compatible with the HDMI2.0, that is, it is capable of Use, the function is not complete, the best in the purchase of HDMI cable directly with the latest HDMI2.0 version, the best in the purchase of HDMI cable.
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2, appearance.
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Appearance can not change the practicality, but can illustrate the quality of the product. At a glance, if the HDMI cable appearance of some glue, burrs and so on is not to say that can not be used, poor quality and so on, but is sure to show that it is inferior goods.
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As for packaging, this is not important, we all know. 3, connectors.
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For HDMI cable, including VGA and so on, when the connector contact is poor, of course, the signal transmission will be worse, and even can not be used. The gold-plated connector, in use for a long time still maintain good contact and conduction.
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The high-quality connector, basically will be plated with 24k gold, but the thickness of the gold plating will react to the grade of HDMI cable.
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In addition to gold-plated, there is a connector material, generally iron, aluminum, copper three, iron will rust, aluminum will oxidize and its own conductivity is not good, copper is the best.
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Of course, HDMI connector gold-plated or not, how the material, the impact on the picture quality is not great.
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4, Wire
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A lot of lines above the small print, HDMI cable is no exception, the small print on the inside of the cable, if it is HIGH SPEED HDMI CABLE WITH ETHERNET (high-speed Ethernet cable), that is of course the best, as for the other are all are shrunken version.
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Of course, purely small letters can not judge the wire, then cut the wire, is 19 cores (five strands of stranded wire, 4 single core, the outermost has a ground, a total of 19 +1 copper core), that is the Ethernet cable.
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At the time of purchase, or even use, of course, we can not directly cut open to see the material inside, but we can be a simple judgment through the basic physical properties - shake the wire to see the hardness.
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If the core of the wire is iron, it will be relatively hard, copper will be much softer, conductivity and other aspects of course, copper is better. However, this approach is not foolproof, pay attention to the size of the wire, the shell and other factors interfere.
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If the wire is larger, there will be filler, it will be harder; and metal or shell with metal will also affect the hardness, so remember to exclude the impact when judging.
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We can customize 4k hdmi cables, 8k hdmi cables, and other types of video cables, can be customized by drawing, 12 years of production experience!
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5, Anti-interference.
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All connecting lines, adapters and so on, for electromagnetic interference is really very sensitive, in electromagnetic interference, picture quality and the normal situation is simply a thousand miles. HDMI cable, including VGA and other wires, anti-interference ability as long as the material from the filler and shell inside the aluminum foil, aluminum and magnesium mesh, metal shell is basically better than the non-metallic shell (there are special, some high-grade line, outside the plastic inside and a layer of metal, called integrated shell. A layer of metal, called integrated shell, mostly used for high-grade line).
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As for the anti-interference ability, we can carry out some small tests, cell phones, induction cookers, microwave ovens can be, cell phones will be more convenient. Connect the line to use, put a cell phone in the side, with another cell phone call over the ringing or call, and then see how much the picture quality change can be.
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Overall, although these methods can not completely exclude the product, but most of them are still possible.
