https://www.micomsoft.co.jp/release20231016-1.html
Google Translation:
RGB color mode compatible capture board "SC400N1-L HDV"
"SC400N1-L HDV" is the successor to SC-500 and SC-512, which supports various video signals with low latency and has been well received by many game production sites and users. Of course, it supports not only 31kHz but also 15kHz and 24kHz analog RGB signals, but as a next-generation product, we were focusing on "RGB" not 4K or 8K.
Main features of "SC400N1-L HDV" RGB/YUV444 format support
Until now, capture products have lost color information by converting internal to video formats such as YUY2 and YUV422 due to the limitation of data volume even if the input signal is RGB. "SC400N1-L HDV" uses the AMV4 video codec (sold separately) to capture videos and still images without losing color information in RGB/YUV444.
※SC400 is a product that has been redesigned the SC-700 exhibited in 2021 due to the influence of semiconductor shortage.
※AMV4 video codec is amaman's shareware.