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The difference between HDMI fiber optic cable and ordinary HDMI cable
2025-04-07
1. Cable core material
There are significant differences between fiber-optic HDMI cables and ordinary HDMI cables in the core transmission medium: fiber-optic HDMI cables use optical fiber as the transmission cable core, while ordinary HDMI cables use copper cable as the cable core.
Fiber-optic cable cores are usually divided into glass fiber and plastic fiber. Glass fiber performs better in terms of signal loss, but relatively speaking, the cost of plastic fiber is more affordable. In practical applications, in order to ensure the best transmission performance, it is usually recommended to use plastic fiber in short-distance transmission below 50 meters, and glass fiber in long-distance transmission above 50 meters.
Ordinary HDMI cables usually use copper wire as their core material. Copper wire has good conductivity and can effectively transmit signals. However, as the transmission distance increases, the signal attenuation problem of copper wire gradually emerges, especially in long-distance transmission, the signal quality may be affected.
The difference in material between the two cables further leads to significant differences in their appearance, picture quality and transmission rate. For example, fiber-optic cables are very thin, light and soft; while conventional copper core cables are thicker, heavier and harder.
2. Built-in chip
The optical fiber HDMI cable relies on the photoelectric conversion chip to complete the signal transmission process, which involves two conversions. First, the electrical signal is converted into an optical signal for transmission in the optical fiber, and then the optical signal is converted into an electrical signal at the other end to ensure that the signal is transmitted from the SOURCE end to the DISPLAY end.
In contrast, ordinary copper core HDMI cables directly use electrical signals for transmission without the intermediate link of photoelectric conversion
3. Transmission performance
In short-distance signal transmission, the transmission rate of optical fiber HDMI cable and copper core HDMI cable is almost the same.
However, in long-distance transmission, the advantage of optical fiber HDMI is very obvious. It uses optical fiber as the transmission medium, is not affected by electromagnetic interference, can achieve true lossless transmission, has a higher signal-to-noise ratio, maximizes the sound quality, ensures the purity of the sound, and has obvious advantages in transmission speed.
4. Price difference
The optical fiber HDMI cable has advantages that the copper core HDMI cable cannot match, especially in long-distance transmission, there is no need to worry about signal attenuation or distortion, but the price is several times that of the copper core HDMI cable. It is mainly suitable for long-distance and professional application scenarios such as high-definition cinemas, stage displays, office projections, and monitoring systems. If the application scenario is short distance, such as connecting the host to a monitor or connecting the TV to a set-top box, it is recommended to choose a more cost-effective copper core HDMI cable.