Z370 Asrock Extreme 4 Wifi Question
What would be the best route to get wifi on this mobo? I do not want to use a usb adapter. Would a m.2 intel card like 8265 with a pci to m.2 adapter be my best route? Or can someone suggest a good pci wireless card? Or would it be better to buy a z370 board with built in wifi?
No need to spend more than this.
Actually, there is. That router supports both MU-MIMO and Beamforming, and that network card does not support Beamforming. It makes a difference, believe me.
I'd recommend something like this, at minimum, which does support beamforming using ASUS AiRadar.
PCPartPicker part list / Price breakdown by merchant
Wireless Network Adapter: Asus - PCE-AC56 PCI-Express x1 802.11a/b/g/n/ac Wi-Fi Adapter ($59.89 @ OutletPC)
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-02-09 22:36 EST-0500
Certainly the lower end models WILL work, but I guarantee that connections are maintained at faster speeds and with fewer drops in signal or speed, when both devices support beamforming and when the router supports MIMO operations. If you can't use ethernet for whatever reason, then this is a pretty good option.