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What is the difference between SDI input connection 12G and 3G?

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This is the bandwidth of the SDI connection, expressed in gigabit per second. This limits the characteristics of the video signal you wish to transfer. Many factors are at play:

  • resolution
  • frame-rate
  • bit depth
  • chroma sub-sampling

Typically, 3G-SDI will be used for FHD and 2K signals, while 12G will be used for UHD and 4K.

Edited by Nicolas POISSON
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