I didn’t buy it so I don’t have the manual and it’s clearly something that’s slowly being introduced into the market so there is very little talk about it. But I just spent hours researching it and people have confirmed that having a 2.5 Gbe Ethernet port/WAN does give them more than their 1GB service they’re paying for from their ISP. Having 1gig WAN keeps you below 1gig. Makes sense to me. There are a couple gaming laptops now with 2.5Gbe as well as a couple routers with 2.5Gb Wan port.