GitHub - codebling/tenda-rx9-tx9-ax12-firmware: Extracted firmware for Tenda wifi router with model names RX9 Pro, TX9 Pro, and AX12. This is a cheap Wifi6 AX3000 router that runs firmware based on OpenWRT.
Tenda AX12 Dual Band 2.4G 5G 2976Mbps Gigabit Rate Wireless WiFi Router AX3000 Wifi6 Signal Amplifier Repeater IPV6 Game Router|Wireless Routers| - AliExpress