Maybe this: https://www.microchip.com/en-us/product/PCI11400 Unfortunately to access the whole datasheet you might have to sign an NDA (and probably have a large company), also designing things with those kinds of interfaces isn’t trivial.
Alternatively maybe this: https://www.renesas.com/us/en/products/interface/usb-switches-hubs/upd720202-usb-30-host-controller It also seems to be locked by an NDA.
They are called soft termination, I’m not sure if that’s available for every component, it came to my attention on ceramic caps. It’s a dedicated feature you can filter components e.g. on Digikey.
I’d say that’s a version of a soft termination capacitor. They are used when there’s risk the board is flexed or exposed to mechanical or thermal shocks to prevent cracks in the capacitor (causing it to fail short).
I also have that guy :)
Oh don’t be afraid it doesn’t go to nowhere :D. I just posted some images how that line continues :).
The train on the left is heading into an (under construction) underground section 
There are also some leftovers from a crashed monorail train (no monorails were harmed here, it’s built from regular parts).
On the other end the trains are heading into (modified) winter-village.
In between there are some areas that aren’t built yet but there’s quite some space left. Also I’m a little surprised that shelves hold it up that well :D (they are bolted to a substantial brick wall tho).
I remember being a child and building a space station (it looked a bit like StarLab so I guess the station in general was on TV or in a book) with a solar array that shape, my parents were a little angry and asked where that shape came from. I didn’t have a clue so I basically just said I liked the symmetry. They told me that’s a "very bad shape and that I have to rebuild it. It ended up being 8-shaped, which was also nice.