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Antminer S21 is an innovative Bitcoin mining device developed by Bitmain. In collaboration with TSMC, a leading semiconductor manufacturer, Bitmain launched the S21 series with advanced 7nm chips, enhancing efficiency by up to 40% compared to the previous S19 models.

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.



Brand Antminer S21
Model S21
Algorithm | Cryptocurrency SHA256 | BTC/BCH/BSV
Hash Rate 200TH/s ± 3%
Power on wall @25°C, Watt 3010w ± 5%
Power efficiency on wall @25°C, J/TH 17.5 ± 5%
Power Supply With PSU
Power supply AC Input voltage, Volt(1-1) 200~240
Power supply AC Input Frequency Range, Hz 47~63
Power supply AC Input current, Amp(1-2) 20(1-3)
Networking connection mode RJ45 Ethernet 10/100M
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
Operation temperature,°C 0~40
Storage temperature,°C -20~70
Operation humidity(non-condensing) , RH 10~90%
Operation altitude, m(3-1) ≤2000
Warranty 180 days



Antminer S21

Purchasing Guidelines

  • Customers can purchase up to 200 units.
  • If the hashrate of the delivered mining machine is lower than 200TH/s, BITMAIN will refund the difference according to $/T.
  • Full payment is required for the product.
  • BITMAIN will not entertain requests to cancel an order, refund an ordered amount, or change the ordered item(s) to different item(s) or different batch(es) after an order has been submitted.


Shipping Details

  • Shipments will be scheduled on a first-paid-first-ship basis for orders on which BITMAIN has received full payment.
  • Customers are responsible for any customs delays or returned shipments due to a lack of proper documentation. It is highly recommended to be aware of local customs clearance policies and to prepare all customs documentation ahead of time to avoid any customs clearance delays or unexpected costs.



  • A 180-day warranty is provided starting from the shipping date. BITMAIN will cover shipping costs when shipping a replacement unit within the warranty period.
  • The warranty only applies to the original purchaser who purchased the machine directly from BITMAIN. Once the miner is resold, warranty coverage becomes the responsibility of the reseller.
  • If the user fails to use the product according to the given instructions, specifications, and conditions provided, or changes the function settings of the unit without BITMAIN’s prior consent, BITMAIN will not be liable for any damage arising therefrom.
Weight 18 kg

200 TH/s @ 3010w



Mineable Coins

BTC/BCH etc.

Hash Rate

200 TH/s ± 5%

Power Consumption

3010w ± 5%


17.5 J/TH ± 5%


RJ45 Ethernet 10/100M


4 x fan


With PSU

Miner Size (Length * Width * Height, w/o package), mm

400 * 195.5 * 290

Miner Size (Length * Width * Height, with package), mm

570 * 316 * 430

Net weight, kg




24 reviews for Antminer S21 Bitcoin Miner 200TH for Bitcoin Mining

  1. qvMitt (verified owner)

    best reseller, will order again

    1 product
  2. markalina722 (verified owner)

    professional, recommended reseller!

    1 product
  3. jacomistery (verified owner)

    Fast Shipping, recommended seller.

    410 products
  4. jacobrich (verified owner)

    good communication! will order again

    1 product
  5. marino2t (verified owner)

    fast shipping and delivery, recommended seller!

    29 products
  6. pontus.olofsson (verified owner)

    fast shipment, Recommend!

    202 products
  7. nbfcsoftware1 (verified owner)

    All was Ok. Good seller. The machine look in good condition. Very serious for business. The fan of the machine was all New Part.

    398 products
  8. kaancamur (verified owner)

    Fast Shipping, Recommend!

    1 product
  9. deno001 (verified owner)

    Great seller. thanks!

    205 products
  10. andreaschristensen (verified owner)

    good! excellent supplier

    1 product
  11. tansleycarpentry (verified owner)

    Good packaging, will order again

    468 products
  12. bitcoin.story (verified owner)

    the Miner is in excellent condition. will buy again

    216 products
  13. hardwo.rk.e.r.s.e.o (verified owner)

    good! will order again

    373 products
  14. aletheabero (verified owner)

    good quality,recommend

    1 product
  15. afuksjaa (verified owner)

    Strongly recommend!

    1 product
  16. gundogdu424 (verified owner)

    fast delivery thanks

    1 product
  17. ritech (verified owner)

    fast shipment, will order again

    1 product
  18. AngelLoxbit (verified owner)

    Quick delivery, recommended seller!

    1 product
  19. adbizcentral (verified owner)

    good seller! thanks a lot

    463 products
  20. fewszac006 (verified owner)

    perfect! recommended seller.

    351 products
  21. heringasem2 (verified owner)

    Pleased with the protection of the box from the side of the block, a lot of pupyrki. Great packaging!

    1 product
  22. linosegur (verified owner)

    Good packaging, will order again

    36 products
  23. alexus083 (verified owner)

    Great seller. thanks!

    75 products
  24. CryptoAmbassador (verified owner)

    delivery fast, recommended reseller!

    49 products

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