I recently bought FriendlyElec’s CM3588 NAS and I’ve been evaluating it for use as a NVR. It’s one of the few (the only?) ARM SBCs that has more than two 2280 M.2 slots. With its four slots you can do three NVME SSDs and one AI accelerator like the Hailo-8.

The board uses a 5.5x2.1mm DC jack (boo!), but I bought a USB-C to 12v 5.5x2.1mm cable to power it.

I’ve started a Yocto layer for the board here: https://github.com/JonLech/meta-cm3588-nas

FriendlyElec CM3588 NAS