What is a good m. 2 alternative? I was looking to use my old rx580 but it appears that rocm dropped support for it

I don’t remember and I am not near it, but some pcie 1x slots cannot be used because they don’t have a slit cut on the right hand side. But that is not really that big of a problem because one can use a Dremel tool very carefully to cut that slit in the pcie slot plastic.