Hello! We will buy the best currently-available hardware that is specially made to mine bitcoin. They are called ASICs, or “Application-specific integrated circuit chips”. Right now, the best ASIC miner is the Ebit Miner E10 made by Ebang. For a comparison of miners, please see our White Paper. https://minerone.io/doc/minerone_whitepaper.pdf
Please check this likn regarding Asics as well https://medium.com/@minerone.io/who-has-the-best-deal-on-crypto-miners-2cdc8b538eb4
Our CEO just returned from the Trip from Sweden. I would recommend to read our blog here https://medium.com/@minerone.io/miner-one-moves-forward-in-sweden-d94b0c9bf2ba