Startech com pcie ac1200 dual band wireless ac network adaptor startech com pex867wac22 p the startech com pex867wac22 pci express ac1200 wireless network adaptor lets you add dual band wireless ac connectivity to a desktop computer with a pcie slot with increased demand on network resources this wireless ac adaptor gives you exceptional speed and range for your office or home wireless network when paired with an 802 11ac router the adaptor supports data rates of up to 867mbps on the 5ghz