I know Z170 mATX options are currently limited, but I was surprised to find that none of them have onboard WIFI. Are we really supposed to use up the M.2 slot for that? I guess I wouldn't mind sticking to a good ol' SATA SSD, but does anyone have experience on how M.2 WIFI cards, like http://www.amazon.com/dp/B00GUNZUG0/?tag=theminutiae-20, perform versus onboard options (with antenna attachments) such as http://www.gigabyte.com/products/product-page.aspx?pid=4999#ov?