I've never seen an onboard Ethernet jack that doesn't have metal sides. The only places I've seen all-plastic Ethernet jacks are consumer networking gear and re

I've never seen an onboard Ethernet jack that doesn't have metal sides. The only places I've seen all-plastic Ethernet jacks are consumer networking gear and really ancient add-on cards. That makes me wonder if their source actually knows what he's talking about, especially given the lack of technical details about how this works.