The difference between MiniHDMI and HDMI in graphics cards
Mini HDMI is commonly called, the general common large-headed HDMI called HDMI A type, rarely used called HDMI B type, small-headed called HDMI C type, which is what we often call Mini-HDMI, there is also a portable device used in cell phones and the like, very similar to the Mini USB called HDMI D type.
HDMI can not only meet the resolution of 1080P, but also support digital audio formats such as DVD Audio, support eight channels of 96kHz or stereo 192kHz digital audio transmission, and only use one HDMI cable connection, eliminating the need for digital audio wiring.
The additional space available on the HDMI standard can be applied to later upgrades of the audio and video formats. It is sufficient for a 1080p video and an 8-channel audio signal. And because the demand for a 1080p video and an 8-channel audio signal is less than 4 Gbps, HDMI has a lot of headroom. This allows it to connect a DVD player, receiver and PRR with a single cable respectively.
HDMI supports EDID, DDC2B, so devices with HDMI have a "plug and play" feature that automatically "negotiates" between the source and display device to automatically select the most appropriate video/audio format.
Compared to DVI, the HDMI interface is smaller, and the cable length of DVI cannot exceed 8 meters, otherwise the picture quality will be affected, while HDMI can transmit up to 15 meters. Just one HDMI cable can replace up to 13 analog transmission lines, which can effectively solve the problem of tangled and messy cables behind the home entertainment system.
Types of HDMI
The HDMI interface is divided into four types: A, B, C, and D.
Type A (Type A) is the most common, generally flat panel televisions or video equipment, are provided with this size of interface, Type A has 19 pins, 13.9 mm in width and 4.45 mm in thickness, 99% of the devices that can be seen now are such size of HDMI interface.
Type B (Type B) is very rare, there are 29 pins, the width of 21 mm, the transmission bandwidth is almost twice as large as Type A, in the home application is completely too "tough", and now only used in some professional applications.
Type C (Type C) is made for small devices, its size is 10.42 × 2.4 mm than Type A is almost 1/3 smaller, the application range is very small.
Type D (Type D) is the latest interface type, the size is further reduced, using a double row of pins design, the size is similar to the miniUSB interface, more suitable for portable and in-car devices.
HDMI interface is different, but the function is the same, usually the quality of qualified HDMI interface, plug life will not be less than 5000 times a day plug can be used for 10 years, it should be very durable. It is also worth mentioning that HDMI is backward compatible with DVI interface, through the commercially available HDMI-DVI adapter, you can connect some older DVI devices, because DVI also uses the TMDS method, after the device is connected, you will find that DVI devices do not have CEC (consumer electronics control) function, and can not accept Audio signal, but basically does not affect the transmission of video signals (there may be a need for grayscale adjustment), so some displays with only DVI interface, you can also connect HDMI devices.
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