judging from the pictures here:
https://laptopmedia.com/highlights/inside-asus-zenbook-pro-14-ux480-disassembly-and-upgrade-options/
this could be the part
https://www.ebay.de/itm/Asus-ZenBook-Pro-UX550-UX550V-UX550VD-UX550VE-Strombuchse-Buchse-DC...