I just read a post in Usenet asking that question. The poster gave me the impression that such motherboards (no built-in wi-fi or bluetooth) are becoming rare these days. I'm curious because I very much prefer wired (Ethernet) connection over the convenience of wi-fi or bluetooth connectivity. A followup reply in that thread suggested that even BIOS settings to disable wi-fi and BT ports can be overridden by software, which is also disconcerting to me, because it means that even though you have turned off those capabilities, they could be turned on again without your knowledge. In short, I prefer minimizing as much as possible how third parties might access my computer or monitor my computer by not having wi-fi or BT built into the motherboard.