Overall performance and Effectiveness: Assess the hash level and power efficiency from the used Antminer. These metrics are vital for pinpointing the probable profitability within your mining Procedure. In order for you this machine to be profitable for mining Bitcoin, my advice is you get it via Bitmain’s Web page https://refurbishedantminerz1546437.myparisblog.com/39690292/z15-miner-for-sale-explained-simply