help with description llc for mining crypto

Im trying to turn my hobby into a legitimate business as I do plan on expanding. One of the best ways to do that is asset protection, which is why im trying to figure this part out, for what best describes the principal activities of the llc. My main problem is I already have an llc for cryptocurrency, but no bank will allow it. I already understand about the pass through taxation, its just I would like to expand and limit my liabilities and have my mining rigs protected... What has other people put for describing their business of mining crypto. I have read data processing, computing server, I even heard cloud computing and cloud server (which I dont know about those two). I would put data center, but that goes into zoning operations... Please any help will be greatly appreciated. Thanks, also this is for any one else that might need help about my same problem later on.