Antminer S21 Pro Bitcoin Miner 250TH for Bitcoin Mining


  • Brand: Antminer S21 Pro
  • Model: 250 TH/s @ 3550w
  • Shipping Date: January 2024
SKU: b00042 Category: Tags: ,


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 250TH/s and consumes just 3,550 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 14.2 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 250TH/s ± 3%
Power on wall @25°C, Watt 3550w ± 5%
Power efficiency on wall @25°C, J/TH 14.2 ± 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.

Additional information

Weight 18 kg

250 TH/s @ 3550w



Mineable Coins

BTC/BCH etc.

Hash Rate

250 TH/s ± 5%

Power Consumption

3550w ± 5%


14.2 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





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