This product belongs to the HDMI signal distribution product. Generally speaking, HD DVD only has one HDMI output, but sometimes the HDMI signal distributor takes effect when needs multiple monitors or TV to display the same picture.
This is an ultra high definition HDMI splitter supporting 3D and 4K*2K resolution. The ultra HD signal can be easily allocated to multiple monitors that support Ultra HD signals.
 
https://tekknikk.com/shop/hdmi/dtech-dt-7144-4k2k-hdmi-splitter-14/