As Bitcoin’s trouble degree improved, so did the demand for more effective and Power-productive miners. This brought about the event of successive Antminer types, Each individual a lot more Innovative than the last. Notable milestones consist of the Antminer S7 and S9, which became the gold regular of their time https://open.substack.com/pub/antminer/p/is-it-worth-buying-used-asic-miners