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Types of video cables

Update:Dec 08,2021
Summary:AV lineThis is the oldest video cable that transmits analog video signals. Both ends are lotus heads (RCA heads). Both DVD players and TVs will have t...
AV line
This is the oldest video cable that transmits analog video signals. Both ends are lotus heads (RCA heads). Both DVD players and TVs will have this kind of interface. This kind of cable is not required for decoration;
S terminal line
A video cable with a better quality than the AV cable appeared in the past few years. The interface is round, similar to a PS2 mouse head;
Three color difference line
A video cable with better quality than the S-Video cable, which transmits analog signals, should be the best video cable among analog signals. Newly released DVD players, high-end TVs, and home projectors will all have this interface.
VGA cable
It is also a kind of analog signal video cable, which is most common in computers. Its signal has advantages compared with the color difference cable. However, as the amount of video data increases, for example, if the video signal of 1920X1080P is to be transmitted in the future, the redundancy of the color difference cable will be greater. , After the resolution exceeds 1600X1200, the quality of the VGA cable is slightly inferior, and a longer length will cause snowflakes. Why do home theaters mention VGA cables? That's because HTPC enters home theaters, and all projectors have VGA ports.
DVI cable
The full name is Digital Visual Interface, the latest digital video cable, which uses uncompressed technology to transmit all digital signals. The maximum transmission speed is 8Gbps. It is a digital video signal cable supported by most manufacturers. The transmission speed of the interface is as high as 8Gbps. The interface has 24+1 (DVI-D), 24+5 (DVI-I) type. DVI-I supports simultaneous transmission of digital (DVI-D) and analog signals (VGA signal). Generally speaking, HTPC graphics cards are generally DVI-I interfaces. The LCD monitor and the projector have a DVI-D interface. Although the DVI-I interface is compatible with the DVI-D interface, the DVI-I plug cannot be inserted into the DVI-D interface. Why? There are four more pins. But we still have a way, using a DVI-I to DVI-D converter.
HDMI cable
The full name is Hi-Definition Multimedia Interface, a digital video cable newer than DVI. It transmits all digital signals with uncompressed technology. The maximum transmission speed is 3.95Gbps. In addition to video transmission, HDMI also supports 8-channel 96kHz or mono 192kHz digital For audio transmission, there are not too many devices that support HDMI. Its interface can be converted with DVI interface (video signal part).