This is an orange Pi zero with an H3 chip. I can't make sense out of the part numbers. But it's a zero, it is square, it has an ethernet and wifi, and has an H3 chip right on the top of the thing.
The device tree says
model = "Xunlong Orange Pi PC Plus";
compatible = "xunlong,orangepi-pc-plus\0allwinner,sun8i-h3";
The build I was running is the latest I could find
[ 0.000000] Linux version 6.12.35-current-sunxi (build@armbian) (arm-linux-gnueabihf-gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #1 SMP Fri Jun 27 10:11:46 UTC 2025
So whatever it says in the boot log and in the armbian monitor (which I included as a link in my original post) is what this is.
And there is no ethernet or wifi on it, nor has there ever been since I bought it maybe 4 or 5 years ago. Every few years I try the latest build and check to see if that fixes it, and it never seems to happen.
arbmianmonitor.log
bootmaybeowkring.log