Introduction to the Antminer S21 Series

In 2023, Bitmain has evolved its product line from the S19 series to the S21 series. Let's delve into the different machines within the S21 series.

Air-Cooled Models

The air-cooled S21 models include the S21, S21 Pro, and S21 XP.

• S21: Launched in 2023, the S21 comes in three hash rate variants: 200T, 195T, and 188T, with a power efficiency of 17.5J/T.
• S21 Pro: Introduced just last month, the S21 Pro currently offers a hash rate of 234T with a power efficiency of 15J/T.
• S21 XP: Expected to launch in 2025, the S21 XP is projected to have a hash rate of 270T. The actual hash rate will be confirmed upon shipment, with a power efficiency of 13.5J/T.

Water-Cooled Models

The water-cooled models in the S21 series are the S21 HYD and the S21 XP HYD.

• S21 HYD: Released this year, the S21 HYD boasts hash rates of 335T, 319T, and 302T, with a power efficiency of 16.0J/T.
• S21 XP HYD: Expected to be available in Q4 2024, the S21 XP HYD has an announced hash rate of 473T and a power efficiency of 12J/T.

Immersion-Cooled Model

The S21 XP IMM is Bitmain's first immersion-cooled machine, available in two models:

• HEM (300T): Offers a power efficiency of 13.5J/T.
• HEM (380T): Provides a power efficiency of 15J/T.

Choosing the Right Machine

As the Bitcoin halving event reduces mining rewards, selecting the right mining machine becomes increasingly crucial. The S21 series offers a range of options to meet various needs and preferences, ensuring efficient and profitable mining operations.

In summary, the S21 series represents a significant advancement in mining technology, offering diverse cooling options and superior performance metrics. With the upcoming Bitcoin halving, investing in a high-quality, efficient mining machine like those in the S21 series is more important than ever.

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