AIUI, most NICs these days do what is called "auto-crossover"; i.e., they'll detect the situation and just do the "crossover" in the NIC itself. A normal cable works.

Yes, the name is Auto MDI-X and is standard since on-board 1Gbps Ethernet NICs became the norm.

https://en.wikipedia.org/wiki/Medium-dependent_interface#Aut...