This message was posted on behalf of Intel Corporation
I understand you are looking for the wired network controller model for the Intel® NUC NUC5i5RYH, let me help you on this matter.
After checking full Intel® NUC specifications at the technical product specification page, I see this is an Intel® I218-V Gigabit Ethernet Controller (10/100/1000 Mb/s)
See specifications here. Page 29
Hope it helps,