Hello, it looks like server cabinet that I just got off of Facebook marketplace doesn't seem to have rails or a rack. I'm not sure what the terminology for all of this is but I don't see a clear way to mount anything to the server cabinet could any of you kind souls explain what I need to buy for this cabinet?
Buy some like these https://cablematic.com/en/products/profile-rack-19-inches-for-sohorack-12u-2-units-WO044/
And check if you could install them on that frame.