Quick overview from the supplier:
TP-LINK RE550 AC1900 Wireless Wall Plugged Range Extender, Atheros, 1300Mbps on 5GHz + 600Mbps on 2.4GHz, 802.11ac/n/g/b, 1 Gigabit Lan Port, Ranger Extender mode, Access Control, Concurrent Mode boost both 2.4G/5G, WPS, 3 external antennas
