How to choose
HDMI CABLE? It is recommended to choose according to the actual needs: 1, cable length: according to the use of scenarios, to determine the length of the HDMI cable; 2, core selection: copper core HDMI cable or fiber optic HDMI cable? It is recommended to consider according to the transmission distance; 3, the cable version: HDMI2.0 version, support for 4K @ 60hz resolution and refresh rate; HDMI2.1 version, support for 8K @ 60hz \ 4K @ 60hz resolution and refresh rate; 4, the brand and the price: it is recommended to choose the senior brand, quality control is more secure!
Fiber optic HDMI cables use four-core optical fiber as the conductor, using optical signal transmission, and from the signal source to the display device needs to go through two photoelectric conversion. Copper HDMI cable to 4 pairs of copper twisted pair as a conductor, the use of electrical signal transmission, do not need to go through two photoelectric conversion. Due to different transmission principles, there are differences in transmission performance. Ordinary copper HDMI HD cable transmission is stable and reliable, and cost-effective, in the 20-meter range of short-distance scenarios in a very wide range of applications, but encountered long-distance video transmission, even with a signal amplifier can not be more than 30 meters, if forced to extend, it will lead to the video image quality will plummet, and even unavailable. In contrast, fiber optic HDMI cable is finer and lighter, communication capacity, transmission is completely free from external electromagnetic interference, can achieve more than 100 meters of lossless transmission signals, and no signal amplifier, a good solution to the traditional copper-core HDMI cable can not be achieved long-distance transmission. Simply put, copper HDMI cable is suitable for short-distance transmission scenarios, while fiber optic HDMI cable is more adaptable to ultra-high-speed, ultra-long-distance audio-visual needs of the application scenarios. Thus, in the process of building audio-visual systems, it is recommended that users select the cable according to the actual scene of use.
