The Chinese application-specific integrated circuit (ASIC) producing giant, Bitmain, has debuted its latest bitcoin mining machines. The new machines include the air-cooled Antminer S21+ and the water-chilled Antminer S21+. This comes hot on the heels of Bitmain’s announcement of the next-gen U3S21EXPH unit, a liquid-to-chip miner with a jaw-dropping 860 TH/s.

The latest additions to the Antminer lineup range from 216 TH/s to 319 TH/s, with the air-cooled model clocking in at a power efficiency of 16.5 joules per terahash (J/T). The hydro-cooled S21+, which delivers a more hefty 319 TH/s, shines even brighter with an efficiency of 15 J/T, according to Bitmain’s specifications.

The release comes at a time when Bitcoin’s total hashrate hit a lifetime high, reaching a massive 698 exahash per second (EH/s) on Oct. 10. This year, Bitmain’s rivals—Auradine, Microbt, and Canaan—have also been busy releasing a range of new mining machines, adding fuel to the overall computational power of the network. As more powerful and energy-efficient machines enter the scene, the network is only going to get stronger.

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