There are so many details to keep track of when buying a TV, one of the most basic questions is: How many HDMI ports do you need? and which one? We're here to eliminate the confusion and make your TV shopping experience a little easier. We'll help you understand not only what types of HDMI ports are available, but which are better suited for different purposes.
Many early adopters of HDTV relied on DVI because it came to market before HDMI. Since DVI and HDMI both use the TMDS protocol, they are compatible. All that is needed to connect an HDMI cable to a DVI port is a passive adapter.
DVI and HDMI connectors have some other similarities. Both use a pin grid to transfer the signal from the cable to the device. while DVI has a 29-pin connector, HDMI's A-type connector has 19 pins. the DVI connector also uses a pair of built-in screws to secure it to the device. the HDMI plug does not have this additional support, and some users have expressed concern that this could put undue strain on the device's circuitry. There is also a miniature version of the HDMI connector for smaller devices such as digital video cameras and a 29-pin Type B connector, although most consumer devices use Type A. The cable itself is divided into two categories.
The cables themselves are divided into two categories. category 1 has a speed of 74.25 MHz. category 2 has a speed of 340 MHz. most consumer cables are the faster category 2 cables.
In addition to connectors and cables, the HDMI standard also applies to how televisions synchronize sound with video and display color. These features have changed significantly over several revisions of the standard, which we will compare in the next section.
Thankfully, this advice is simple: the more ports, the better. We recommend that you buy a TV with at least three HDMI ports, but it's best to use four because it gives you more flexibility.
After setting up your TV, you'll appreciate the extra ports. The average home may have multiple HDMI-connected devices, such as Blu-ray players, game consoles, and cable or satellite TV boxes. The bars also use HDMI (more on that later), and if you have anything extra, such as a streaming stick or a second game console, you'll find yourself thankful for the extra ports. Otherwise, you will have to manually replace the device connection or buy one of the cheapest HDMI switches to get the extra connection.
A more complex issue is the best HDMI format. In the last few years, you will probably find three main HDMI formats on your TV.
It supports 1080p video and sound, as well as 4K video, but only at 24 frames per second. With a maximum video bandwidth of 8.16 Gbps, it is the most basic version of HDMI that is popular today and is most commonly found in 4K TVs that are more than 5 years old.
With increased bandwidth (14.4 Gbps), this newer HDMI standard can handle 4K video at 60Hz and is compatible with most current 4K TVs and game consoles.
The latest version of HDMI has significantly expanded bandwidth (up to 48 Gbps) and supports higher frame rates and resolutions, including 4K at 120Hz and up to 8K resolution at 30Hz.
The higher bandwidth also supports new features such as enhanced audio return channel (eARC), variable refresh rate (VRR) and automatic low latency mode (ALLM).
Please contact AIKE to buy the ports and cables you need.