As in the case of HDMI splitters, there are a large number of USB capture cards, both from the most budget ones based on the MS2109 chip (about $5) to much more expensive ones. The blog of the author of HyperHDR has an article in which he describes his experience of using various capture cards in different price categories (link).
For myself, I chose a relatively new capture card model based on the MS2130 (link).
For this project, many users previously used a simpler capture card on the MS2109 chip, but in this case I needed to have support for the USB 3.0 standard and full support for 1080/60Hz. The budget capture card specified above did not have these characteristics.
The capture card uses an HDMI socket ("Female" type) as an input. To connect this card to an HDMI splitter either must be used an HDMI cable or an HDMI adapter ("Male-to-Male" type). I was more comfortable with the second option for which the appropriate adapter was acquired (link).
To connect the output from the capture card to the Raspberry Pi, I purchased a short Usb 3.0 extension cable (link).
