Asus dual-band large home Mesh ZENwifi system, XD4 PLUS 2 pack; black, AX1800 , 1201 Mbps+ 574 Mbps, 128 MB Flash, 256 MB RAM ; IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, WiFi 4 (802.11n), WiFi 5 (802.11ac), WiFi 6 (802.11ax), IPv4, IPv6, 2 x antene inter