Bitmain has made available another SHA256 ASIC from their Antminer 19 series available for pre-order – the 84 TH/s Antminer T19 miner. In terms of power efficiency and hashrate the new T19 series device sits a little below the Antminer S19, sold at almost the same pre-order price, but starts shipping near the end of next month and not in September like if you pre-order S19 now. Antminer T19 offers 84TH/s hashrate at 3150 Watts of power or with other words 37.5 J/TH power efficiency and it comes…