کابل HDMI طول 30 سانتی متر

HDMI (High-Definition Multimedia Interface) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television or digital audio device. HDMI is a digital replacement for analog video standards.

HDMI cables were first developed in 2003, and they have evolved over the past decade to provide a universal connection that combines both audio and visual channels into one interface. HDMI, which stands for the high-definition multimedia interface, supports the connection between a device such as a Blu-ray player or cable box and a flat-screen HDTV or projector. The cables are also used for audio equipment such as mixers, recording systems, and speakers. Although no maximum length for an HDMI cable is specified, signal attenuation (dependent on the cable's construction quality and conducting materials) limits usable lengths in practice and certification is difficult to achieve for lengths beyond 13 m.

Inside HDMI cables are conductors for both the audio and visual components. Both audio and visual components also have an audio return channel, which increases the speed and efficiency of their signals. Most conductors and the solder used to meld the conductors and connectors together are composed oxygen-free, high-purity copper, although some use silver as a solder. Silver and copper are the metals with the highest conductivity properties, but they also corrode when exposed to the atmosphere. The green tarnishing in copper and the dark gray tarnish in silver that can happen over time would affect the metals' conductivity. When the copper and silver that are used inside a cable are the highest grades possible, they have less chance of oxidizing or corroding over time.

HDMI devices are manufactured to adhere to various versions of the specification, in which each version is given a number or letter, such as 1.0, 1.2, or 2.0 Each subsequent version of the specification uses the same kind of cable but increases the bandwidth or capabilities of what can be transmitted over the cable.

1. High-purity high-quality conductor, small impedance, signal transmission performance increased by 20% or more.

2. High standard shielding structure designed to effectively isolate external EMI, RFI electromagnetic interference.

3. High-quality PVC jacket, anti-wear, Naisuan Jian, strong flexibility and long service life.

4. Imported plastic injection molding, ergonomic design, plug fashion, durable; using the latest version of the HDMI standard structure design, all- digital signal transmission, fully meet the network, 3D high-performance requirements.

5. Temperature resistance, tensile, anti-oxidation, low lead and low cadmium environmental protection materials.

6. Plug 24K gold-plated dust cover protection, plug and play, signal transmission and stability.

7. Conductor with high purity tinned oxygen-free copper.

8. Full support for 720,1080i, 1080P and other digital signals.

9. Signal twisted pair with 125% special shield aluminum foil, the outer layer of high-density woven mesh shield.

10. Support 3D display screen, Ethernet and audio return channel, standard 1.4 version.

11. Support large screen display .

12. Perfect transmission 1080P, Dolby TrueHD, DTS-HD next-generation tracks.