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Tech Specs

Description

Antminer S21 is manufactured by Bitmain and supports the SHA-256 algorithm, offering hashrates of 151Th/s with consistent performance and a power consumption of 3500W.

Specifications

Manufacturer Bitmain
Model Antminer S21 200Th/s
Size w/o 400 X 195 X 290mm
Size with 570 X 316 X 430mm
Weight Net 15400g
Noise level 75db
Fan(s) 4
Power 3500W
Voltage 220-277
Interface Ethernet
Storage Temp. -20-70
Temperature 0 – 45 °C
Humidity 10 – 90 %
Warranty 365 Days

Product highlights

  • hashrate logo

    151Th/s

    Hashrate

  • power logo

    3500W

    Power

  • algorithm logo

    SHA-256

    Algorithm

  • efficiency logo

    17.5j/Th

    Efficiency

  • weight logo

    15.4Kg

    Weight

Minable coins

  • bitcoin logo

    Bitcoin

Meet the Powerhouse: Bitmain Antminer S21

The Bitmain Antminer S21 is a SHA-256 ASIC miner delivering 151 TH/s at 3500W, with an efficiency of 17.5 J/TH. It is designed for mining Bitcoin and other SHA-256 coins, using four-fan air cooling and Ethernet connectivity for continuous mining operation.

Optimized for maximum efficiency.

With a net weight of 15.4 kg and an operating temperature range of 0°C to 45°C, the S21 is suited to mining setups with proper electrical capacity, airflow, and noise management. Its 151 TH/s output places it as a current-generation air-cooled SHA-256 miner without needing the larger infrastructure required by hydro or immersion models.

Fast shipping. Easy returns. Secure pay. 24/7 support.

FAQs

Please read our FAQs page to find out more.

What are the standard shipping times?

Orders are typically dispatched within 2–4 business days after full payment verification.

Which shipping companies do you use?

We always use well-known and reputed international couriers such as DHL Express, UPS, FedEx to ensure safe and timely delivery.

What payment methods do you accept?

We accept Wire Transfer and a variety of cryptocurrencies including Bitcoin, Ethereum, Dogecoin, Kaspa, Litecoin & many more.

How long will it take to receive my order at my doorstep?

International deliveries usually take 5–8 business days after dispatch, depending on the destination.

Can you help reduce customs duties or offer DDP shipping?

Yes. We can provide a lower invoice value to help reduce import duties.

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