HD cable purchase

How to choose the six precautions for HD cable

First, choose the brand

Choose the high-definition line, the first one can see the brand, the quality of the wire of the general big brand is good and the service is better.

Second, look at the signs

Check whether there is HDMI or Simplay certification mark on the product packaging. Good wire will have two association certification marks at the same time, and the quality is more secure.

Third, look at the version of the line

Commercially available HDMI cable versions range from 1.3, 1.3a, to 2.0. With each new level of version, bandwidth is greatly increased and compatibility is supported downwards. At present, the HDMI 2.0 version of the bandwidth, the HDMI 2.0 specification supports a maximum transmission bandwidth of 18 Gbps, which is much larger than the previous version, and this is achieved without the user having to purchase a new cable separately. By optimizing the transmitted signal, it can transmit faster video without loss in the same cable. Now choose the wire to consider the 2.0 version is appropriate.

Fourth, whether the joint is gold-plated

Good quality HDMI cable, the connector can not be ignored. At present, the commercially available HDMI connector process is gold-plated and nickel. From the perspective of transmission effect, the gold-plated connector is better, which can effectively reduce the loss generated during signal transmission. The better quality HDMI cable is mostly gold plated in the joint part.

Fifth, the process of wire manufacturing

Using pure copper as the inner core: using pure copper as the inner core is more conducive to ensuring the quality of the transmitted signal. HDMI with copper core is softer and easier to bend. If it is made of iron core or alloy material, it will bend very hard and the signal transmission is not good.

Soft and hard line material: Good HDMI cable is moderately soft. Too hard HDMI cable is not easy to bend, it is easy to slip or tilt when connected, which may cause poor contact. The too soft HDMI cable will affect the transmission quality.

Bright and smooth wire connector: The connector process is also one of the key factors affecting the quality of the HDMI cable. Good HDMI cable connectors are generally gold plated, and the surface is bright, and the transmitted signal is more stable.

Sixth, wire cable number

The standard HDMI cable uses the 28th or 30th wire, and the good wire uses the larger diameter of the 24 or 22 wire because the cable with the thicker core conductor is used to transmit high frequency signals. The signal attenuation will be smaller.