Use the asus-rt-ac66u/ folder for this router (hardware revision "A1"). For download locations and other info see Where do I download firmware in the FAQ Research "New Build" and model/rev forum threads: do not blindly install a latest build without checking Read the Peacock announcement for older recommended builds and general information.
RT-AC66U B1 Wireless Router Network cable (RJ-45) Power adapter Quick Start Guide Support CD (Manual, utility software) Warranty card 1.1 Welcome! Thank you for purchasing an ASUS RT-AC66U B1 Wireless Router! The ultra-thin and stylish RT-AC66U B1 features a 2.4GHz and 5GHz dual bands for an unmatched concurrent wireless HD NETGEAR AC1750 vs ASUS RT-AC66U. Which is the Best The ASUS RT-AC66U is a 5th gen dual-band Wi-Fi router, and the launch platform for the new ASUS AiCloud service. Its speed reaches 1.75Gbps, utilizing the Broadcom 802.11ac Wi-Fi controller and working in 2.4GHz and 5GHz. The 5GHz band supports up to 1.3Gbps, exceeding current Gigabit wired transmission and 3X faster than 802.11n. ASUS RT-AC66U Manual | Manual PDF Jan 29, 2018
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