[msla]

> I'm sorry who is using RJ45 ports on a laptop these days?

Everyone who understands collision domains.

Everyone who understands bandwidth.

[imwillofficial]

I don't think you understand collision domains.

[msla]

I understand that a WiFi LAN is one.

[imwillofficial]

Every port on a switch is one.

[msla]

https://en.wikipedia.org/wiki/Collision_domain

> By connecting each device directly to a port on the switch, either each port on a switch becomes its own collision domain (in the case of half-duplex links), or the possibility of collisions is eliminated entirely in the case of full-duplex links. For Gigabit Ethernet and faster, no hubs or repeaters exist and all devices require full-duplex links.

[imwillofficial]

"or the possibility of collisions is eliminated entirely in the case of full-duplex links."

So is a wifi connection full or half duplex?

I don't think you understand collision domains.