Xiaomi Redmi AC2100 announced - 802.11ac, 128MB ram, 128MB rom, MT7621A, 1 x gigabit wan + 3 x gigabit lan, 6 antennas - $48 - Hardware Questions and Recommendations - OpenWrt Forum
Xiaomi Mi Router AC2100 Dual Frequency WiFi 128MB 2.4GHz 5GHz 360° Coverage Dual Core CPU Game Remote APP Control For Mihome|Wireless Routers| - AliExpress
Xiaomi Redmi AC2100 Router 2.4G Dual-Band Gigabit 2033Mbps WiFi Router WiFi Signal Amplifier with 6 High Gain Antennas - Walmart.com