Bitmain’s S21 Antminers, with an efficiency of under 20 J/T, attracted Iris Energy, a Nasdaq-traded bitcoin miner. Iris bought 1.4 EH/s worth of S21 miners for $19.6 million, $14 per terahash, with $2.9 million deferred. This boosts their self-mining capacity from 5.6 EH/s to 7 EH/s, and they plan to reach 9.4 EH/s soon. Their Texas data center expansion is set for early 2024.