The Australia-based and Nasdaq-listed Iris Energy recently announced the acquisition of 1.3 exahash per second (EH/s) capacity in Bitmain’s latest Antminer T21 models. This purchase boosts Iris Energy’s proprietary mining capacity to a notable 8.3 EH/s. Iris Energy Secures 1.3 EH/s in Latest Bitmain Deal Iris Energy (Nasdaq: IREN ) announced on Thursday its procurement of 7,000 next-generation T21 bitcoin ( BTC ) miners from Bitmain Technologies. The deal, amounting to roughly $18.6 million, translates to a cost of $14 per terahash. Bitmain has agreed to postpone 20% of this sum until May 30, 2024, while Iris Energy plans to settle the balance through structured payments. At the end of October, Bitmain introduced the T21 series, an air-cooled unit boasting up to 190 terahash per second (TH/s) capacity and a 19 joules per terahash (J/T) efficiency rating. Iris Energy highlighted that these T21 units’ enhanced efficiency ratio will elevate their entire fleet’s performance from 29.5