the caps I've bought X4000 AV receiver for my recently acquired Denon, because it has a lot of HDMI sockets, and I currently only 3 of them in use, which will first probably not going to change, I wanted above all the remaining connections are protected from dust, ok the caps are not cheap, but it's even more annoying when I someday want to connect more devices, and then have the buxen not making good contact for more dust etc.
I just do not buy every year a new device, but one Buy then all right, and I want it then but also in the coming years to have my fun, who thinks the same way, I recommend these caps very if I! ;-)