Works well with optical routers for strong wall penetration capacity on 5 GHz band Ordinary 11AC routers performs poorly on wall penetration on 5 GHz band. With A18 to repeat 5 GHz Wi-Fi network, data transmission rate on 5 GHz band can be up to 867 Mbps, giving a full play to your 100 Mbps optical broadband. By resolving the weakness of Wi-Fi coverage on 5 GHz band, A18 brings you with fast internet experience at home. Scan quality channel automatically for stable, reliable and fast Internet experience Equipped with high quality PCB dual band antennas, the radio frequency distance between antennas of A18 has been improved to um. Each antenna provides both 2.4 GHz and 5 GHz Wi-Fi networks, and extends Wi-Fi networks both on 2.4 GHz and 5 GHz bands. A18 can automatically select high quality channel for you when signal fluctuates, and keeps your devices online even in the move by switching to the network with stronger signals automatically. Visual signal LED guides you to find the best position Guided by the color of Signal LED, you can easily find the best position for your repeater according to your actual network environment. Blue indicates good connection, and red indicates bad connection. One more 100 Mbps LAN port for wired extension Signal is full but the internet is still inaccessible? Want to watch online TV programs on a LCD TV with LAN port but without Wi-Fi adapter? A18 can relieve you from these two painstaking. By connecting the Ethernet cable from your router to the LAN port of A18, you can extend your existing Wi-Fi network in wired manner. To watch online TV programs, you just need to connect the LAN port of A18 that has extended successfully to the LAN port of your LCD TV.