SHA-256 miner Antminer S21

Antminer S21

The Antminer S21, it mines 210 TH/s on the SHA-256 algorithm and uses 3675W.

Daily Mining Revenue For The Antminer S21

Power usage per day at $ / kWh
Payback time with this power price

$ 6.17
179 Days
Warning! These are the real Antminer S21 Specifications as announced on the 22nd of September 2023.

ASIC Prices

Revenue Statistics Per Coin

30 Day Average Mining Revenue For The Antminer S21

Machine Description

About the Bitmain Antminer S21


Bitmain's recent unveiling of the Antminer S21 and S21 Hydro models marks a significant step forward in the cryptocurrency mining industry, showcasing their commitment to energy efficiency and sustainability in the evolving landscape of digital mining.

These cutting-edge models were presented at the World Digital Mining Summit in Hong Kong, drawing considerable attention due to their remarkable specifications tailored to address the ever-increasing importance of energy efficiency. The Antminer S21, with its impressive hash rate of 200 terahashes per second, demonstrates a noteworthy energy efficiency rating of 17.5 joules per terahash. Meanwhile, the S21 Hydro takes energy efficiency to the next level, delivering an astonishing 335 terahashes per second at a rate of just 16 joules per terahash. These advancements are particularly noteworthy when compared to older mining models, which operated at over 20 joules per terahash.

Miners are acutely aware of rising electricity costs and the forthcoming reduction in Bitcoin supply scheduled for April 2024. This has triggered a shift in the industry towards more energy-efficient operations. Many miners are also embracing renewable energy sources, recognizing their role in ensuring the sustainability of cryptocurrency mining.

As the Bitcoin supply diminishes, miners are faced with the challenge of sourcing energy more sustainably or adopting more energy-efficient mining machines to remain profitable. Bitmain's Antminer S21 models are perceived as potential game-changers due to their remarkable efficiency, potentially reshaping the cryptocurrency mining industry.

Sales of these innovative mining machines are slated to begin in the fourth quarter, with deliveries planned for the first quarter of 2024. The industry eagerly anticipates their arrival, heralding a new era of mining that places sustainability and efficiency at the forefront of its mission. Bitmain's forward-thinking approach signifies a hopeful future for cryptocurrency mining, one that is both economically viable and environmentally responsible.

Historical Antminer S21 Prices (Excluding Shipping)


* Shows price history for the last 180 days on the 210 TH/s model

Device Specifications

  • Manufacturer

    Bitmain
  • Maximum Hashrate

    210 TH/s
  • Power Usage

    3675 Watts per hour
  • Power Efficiency

    17.5 J/TH ± 5%
  • Release Date

    October 2023
  • Mining Algorithm

    SHA-256
  • Cooling

    Air Cooling
  • Input Voltage

    220~240V @ 20A
  • Size w/o package

    400 x 195 x 290mm
  • Size with package

    570 x 316 x 430mm
  • Weight

    17.1kg
  • Network Interface

    RJ45 Ethernet 10/100M
  • AC Input Frequency Range

    47~63
  • Environment Humidity

    10 – 90 %
  • Environment Temperature

    0 – 45 ℃
  • Storage Temperature

    -40 – 85 ℃