From the original proposal (OpenWrt One - celebrating 20 years of OpenWrt)
- Storage: M.2 2042 for NVMe SSD (PCIe gen 2 x1)
What will the M.2 slot be used for?
We will use M.2 with M-key for NVMe storage. There is a work-in-progress patch to make PCIe work inside the U-Boot bootloader. This will allow booting other Linux distributions such as Debian and Alpine directly from NVMe.
TMK that hasn’t changed.