These are original Orange Pi 4 SBCs, made by the original Xunlong. They are not the newer and buggy LTS version.
Armbian has images for these here in both Ubuntu and Debian. 's crappy AI bot will not let me post the link, but it is the Armbian website. Look for boards/Show all/Orange Pi/Orange Pi 4 (not LTS)armbian / boards / orangepi4 is what the URL looks like.
These are the 4/16 version, plenty powerful and enough resources to run to run OpenClaw perfectly. I would use the external hard drive option available in "sudo armbian-config" after the initial install. These RK3399 chips are beasts, but they run hot, so make sure you use a fan with a heatsink on them.
One of the nice things about the OPI 4 was that it was their first board with a C type charger, so any standard phone brick and cord will work.