CM4-WRT-A: Raspberry Pi CM4 Gigabit Router Baseboard with NVME Support
The CM4-WRT-A is a Raspberry Pi CM4 carrier board that can be used to create a gigabit router capable of supporting WiFi 6/6E as well as a 4G/5G backup connection.
CM4
How to install OpenWrt on a CM4-WRT-A router
The first step is to generate a firmware image with all the necessary drivers to access the second Ethernet port (ETH1), NVME storage devices, as well as the i2c bus on the CM4-WRT-A router board.