Best Bitcoin Machine Antminer S21 210T 3150W Cryptocurrency Mining Hardware SHA-256 algorithm

Model Antminer S21 (210Th) from Bitmain mining SHA-256 algorithm with a maximum hashrate of 210Th/s for a power consumption of 3150W.

  • Brand: Antminer S21
  • Model: S21
  • Algorithm | Cryptocurrency: SHA256 | BTC/BCH/BSV
  • Hash Rate: 210TH/s ± 3%
  • Power on wall @25°C, Watt: 3150w ± 5%
  • Power efficiency on wall @25°C, J/TH: 15 ± 5%
  • Miner Size (Length*Width*Height, w/o package),mm(2-1): 400*195.5*290
  • Miner Size (Length*Width*Height, with package),mm: 570*316*430
  • Net weight, kg(2-2): 14.2
  • Gross weight, kg: 16.0

Minable coins



Product Detail



Antminer S21 is an innovative Bitcoin mining device developed by Bitmain. In collaboration with TSMC, a leading semiconductor manufacturer, Bitmain plans to launch the S21 series with advanced 5nm chips, enhancing efficiency by up to 40% compared to the previous S19 models.

The anticipated release is by the end of this year, with production scaling up in 2024. The name “S21” follows Bitmain’s odd-number naming convention, emphasizing their commitment to progress. This upgraded efficiency not only boosts miners’ profitability but also addresses concerns about the environmental impact of mining.

Overall, the Antminer S21 represents a significant step forward in the cryptocurrency mining landscape.

We support cryptocurrency payment(Currencies accepted BTC, LTC, ETH, BCH, USDC), wire transfer, western union and RMB.

Apexto has two warehouses, Shenzhen warehouse and Hong Kong warehouse. Our orders will be shipped from one of these two warehouses.

We offer worldwide delivery(Customer Request Acceptable): UPS, DHL, FedEx, EMS, TNT and Special Express Line (double-clear tax lines and door-to-door service for countries such as Thailand and Russia).


All new machines come with factory warranties, check details with our salesperson.


The costs incurred in connection with the return of the product, part, or component to our service processing facility shall be carried by the product owner. If the product, part, or component is returned uninsured, you assume all risks of loss or damage during shipment.

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