Your Cart
Your Cart

The Antminer S21 Pro is the Pro version of the Antminer S21, an innovative bitcoin mining device developed by Bitmain. The Antminer S21 Pro has a hashrate of up to 234TH/s and consumes just 3531 watt of power.

Bitmain launched the S21 series with advanced 5nm chips, which can increase the efficiency up to 40% compared to the previous S19 model, and for the S21 Pro, it reaches 15.0 J/T.

There is no doubt that the Antminer S21 Pro will start a new round of the bitcoin mining arms race.



Brand Antminer S21 Pro
Model S21 Pro
Algorithm | Cryptocurrency SHA256 | BTC/BCH/BSV
Hash Rate 234TH/s ± 3%
Power on wall @25°C, Watt 3531w ± 5%
Power efficiency on wall @25°C, J/TH 15.0 ± 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 210TH/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

250 TH/s @ 3550w



Mineable Coins

BTC/BCH etc.

Hash Rate

234 TH/s ± 5%

Power Consumption

3531w ± 5%


15.0 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




52 reviews for Antminer S21 Pro Bitcoin Miner 234TH for Bitcoin Mining

  1. philip21loss (verified owner)

    excellent, will order again

    1 product
  2. tibiagold1 (verified owner)

    shipping fast, Strongly recommend!

    118 products
  3. axdexter (verified owner)

    best seller. Recommend to all!

    445 products
  4. travis04t (verified owner)

    good seller will buy again

    1 product
  5. derk_l (verified owner)

    perfect! will order again

    1 product
  6. findsid.201 (verified owner)

    Quick delivery, recommended seller!

    38 products
  7. joka (verified owner)

    Quick delivery, recommended seller!

    1 product
  8. ds34v36d468f (verified owner)

    Good reseller! will buy again

    46 products
  9. balanced90 (verified owner)

    best reseller

    244 products
  10. FL4TFTW (verified owner)

    Works great, Recommend!

    2 products
  11. anon.purged (verified owner)

    Thanks!!! very nice!!

    24 products
  12. g3756814 (verified owner)

    good seller will buy again

    42 products
  13. D4GD5F4 (verified owner)

    good miner, Recommend to all!

    10 products
  14. fh (verified owner)

    Perfect communication, recommended seller.

    70 products
  15. moulikhatun (verified owner)

    good! recommended seller!

    17 products
  16. dsf032d00q (verified owner)

    Great seller. The goods were bought bu. I’m happy with the purchase, I will buy more.

    1 product
  17. sadsadsadsad (verified owner)

    fast shipping and delivery, will buy again

    280 products
  18. roshan.j.c (verified owner)

    fast and trusted! recommended

    44 products
  19. webhacking38 (verified owner)

    best seller, will buy again

    1 product
  20. jacee.jf (verified owner)

    good! thanks a lot.

    27 products
  21. jasonstotanan (verified owner)

    good seller! will buy again

    47 products
  22. visamastercard (verified owner)

    Logistics is fast and things are worth it

    552 products
  23. basedgodz (verified owner)

    Excellent! Thank you

    1 product
  24. ddsf0d05df (verified owner)

    Good packaging, Recommend to all!

    520 products
  25. jamesludden (verified owner)

    Perfect! recommended

    24 products
  26. huynh062 (verified owner)

    recommended reseller.

    45 products
  27. artu4 (verified owner)

    best reseller. will order again

    37 products
  28. g3756814 (verified owner)

    Great seller. Recommend

    11 products
  29. xcoin (verified owner)

    Perfect! recommended seller!

    20 products
  30. troysuffern (verified owner)

    Strongly recommend!

    1 product
  31. jhct86 (verified owner)

    fast and trusted! recommended

    1 product
  32. medvedjok (verified owner)

    Quick delivery

    183 products
  33. ztl3a5 (verified owner)

    responsive reseller, recommended reseller.

    47 products
  34. sidin_123 (verified owner)

    good communication! will order again

    1 product
  35. Bassjamesthomas (verified owner)

    best seller.

    521 products
  36. raebetson (verified owner)

    Great reseller. excellent supplier

    38 products
  37. sadfsadfdsf (verified owner)

    good! will buy again

    1 product
  38. lemakfd (verified owner)

    fast shipping, good packaging, powerful miners.

    1 product
  39. ajandersen (verified owner)

    very helpful, Recommend!

    530 products
  40. marcus.boogie (verified owner)

    The goods are packed perfectly, the block was not expected to be heavy. I did not check in the work. In case of breakage, I will write in addition. Everything seems good except delivery.

    100 products
  41. ds5fgs5dg5 (verified owner)

    fast shipping, good packaging, powerful miners.

    1 product
  42. hardwo.rker.s.e.o (verified owner)


    28 products
  43. tinhvan_89 (verified owner)

    good quality,recommend

    472 products
  44. bitscircle (verified owner)

    Very fast order super

    1 product
  45. antonella.milani10 (verified owner)

    best seller, Thank you

    79 products
  46. juauke (verified owner)

    quick response! will buy again

    92 products
  47. francotorti28 (verified owner)

    All excellent. will buy again

    28 products
  48. baileygeorge17 (verified owner)

    A regular client of this seller.

    5 products
  49. suv7770 (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.

    1 product
  50. maria40 (verified owner)

    Great reseller. Thank you

    38 products
  51. suzan.ali1919 (verified owner)

    6 days shipping to Germany. Sellers very friendly. I can recommend! Thank you

    1 product
  52. herin.gasem34 (verified owner)

    Really speedy delivery – good product

    1 product

Only logged in customers who have purchased this product may leave a review.