This 4K Pro Box Video capture systems came also from AliExpress. To my surprise a nice set of cables is included. (See photo). It needs to be connected to a computer using USB to digitize/capture/show video input from different formats ( HDMI and DVI-D). Software is not included, however it should work with some standard software.
For details see the photo from the short manual. (One side EN the other side in Chinese)I selected this device as it, besides HDMI also can handle DVI-D (the video output format of my Yaesu FT710). I did not yet test it with the Yaesu FT710 !