How to select HDMI cables with superior performance and better cost performance?
How to select HDMI cables with superior performance and better cost performance?
1, Confirm the HDMI version: there are HDMI version 2.1 (8 k 60 hz resolution), the production cost is relatively high, / have HDMI version 2.0 (support 4 k 60 hz resolution), HDMI version 2.0 is fully compatible with 1.4, 1.3 HDMI equipment (including version 1.2), 2.0 version of the HDMI cables on the market at present commonly used, superior performance, good cost performance; The higher the version, the higher the cost; the lower the version, the lower the cost;
2. Determine the core as the standard 19 core: The standard HDMI1.4 version of the wire is 19 core (19 core), in order to ensure the FUNCTION and stability of HD 3D. Low - end wire to reduce costs, the use of 13 core or less core HDMI, also known as the simple version. Many devices can also be used to see the so-called HD, but the insufficient transmission of current will lead to unstable transmission, transmission distance cannot be guaranteed, damage to the device (TV, computer) acceleration and aging.
3. Select cables produced by enterprises with standardized management, complete qualifications and perfect quality management system, such as DongGuang S.F. Tech. Electronic Technology Co., LTD., which are guaranteed with perfect materials, production and processing, testing, packaging and after-sales. There is no standard quality management system enterprises, production/testing equipment is insufficient or backward, without incoming material inspection, first piece inspection, process inspection, outgoing inspection wire is not recommended to buy.
Good quality cables are generally certified by the HDMI Association, are more expensive to make, and are of relatively high quality. Therefore, when buying cable, try to choose HDMI cable made for the HDMI Association's member companies.
HDMI includes standard HDMI(about 1.4cm wide), MINI HDMI(about 1.0cm wide) and MICRO HDMI(about 0.6cm wide). Most of the computers and TVS are standard HDMI interfaces. When choosing wires, you should first confirm the interfaces.
5, Determine the length: according to the equipment and needs, determine the corresponding length, different equipment, different applications, the wire quality requirements and length requirements will be different.
6. Why is HDMI cable so hard? Very hard cable, generally no shielding layer. The production is to use cheap plastic filling instead of aluminum foil, weaving. Usually, such inferior lines are made with two large magnetic rings, which make them look strong and give the buyer the impression that they are full. The actual HDMI wire below 5 meters has almost zero magnetic ring effect. The good wire itself is made of aluminum foil, weaving and other multiple shielding materials. Magnetic rings are just a smokescreen to look beautiful.
7. High-priced audiophile wires: Be careful to buy so-called audiophile HDMI wires worth thousands of RMB. (The cable itself plays the role of transmitting signals, and the signal source cannot be substantially changed. People should also be more rational when consuming. Unusually low prices and high prices are not appropriate.)
Miss Shaney 2020/10/4 16:26
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