It's bitaxe under the hood, but with less quality... some reference: https://www.youtube.com/watch?v=-EW2cnMaIF0 .

I am in the same path that you hahaha, trying to build my own mini-farm at house scale and decide to support https://osmu.wiki/ vendors.

I know that bitaxe gamma is small and maybe you want more hash power, just wait a little more... https://github.com/bitaxeorg/ultraHex some people are working in new hardware :).

I will love to see one with a power consumption of 300/400W and a good small form, just need to wait.