Quidway® AR18-2X Series Routers Product Overview Quidway® AR 18-2X Series Routers, launched by Huawei Technologies, are oriented to Small Office Home Office (SOHO) users. They include AR 18-21/18-22/18-22S-8 models. Quidway® AR 18-2X Series Routers are Ethernet access routers, and provide 10BASE-T or 10/100BASE-TX interface in the uplink direction and 10/100BASE-T Ethernet interface in the downlink direction.