Buy Bitmain Antminer S21 Imm 239TH Immersion Cooling ASIC Miner for Bitcoin Mining in Dubai, UAE

Buy Bitmain Antminer S21 Imm 239TH Immersion Cooling ASIC Miner for Mining in Dubai (WhatsApp +971524927769)

(UPDATED: Today) (VAT Invoice & DHL Delivery Available for GCC, Europe, Canada, and United States)

Bitmain Antminer S21 Imm (239Th) Immersion Cooling ASIC Miner ( SHA-256 of up to 239TH/s) is one of the newest models features Immersion Cooling in Bitcoin ASIC Miner for SHA-256 algorithm mining on a power consumption of 3824W (+/-5%).

You may directly buy Bitmain Antminer S21 Imm 239TH Miner online.

Bitmain Antminer S21 Imm 239TH Specification

Brand NameBitmain
Product Model NumberS21 Imm
Crypto Algorithm/CoinsSHA256/BTC
Hashrate249 TH/s
Power on wall @25℃(1-2)3824W
Power efficiency on wall @25℃16.0 J/TH/s
Product Dimensions14.33 x 9.3 x 11.54 inches
364 x 236 x 293 mm
Item Dimensions L x W x H14.33 x 9.3 x 11.54 inches
Power supply AC input voltage range, V(2-1)380~415V AC
Network InterfaceRJ45 Ethernet 10/100M
Power supply AC input frequency range, Hz50~60
Power supply AC input current, A(2-2)12
Adapted AC output power requirement, W(2-3)6000
Net weight, kg16.8
Operation temperature, ℃0~45
Storage temperature, ℃-20~70
Operation altitude, m(2-5)≤2000

Power Supply

It is the recommended to use the official power supply that we provide along with the miner for safe and efficient mining performance.


  • Caution: Bitmain’s product warranty does not cover damages caused by overclocking, even when overclocking is enabled via Bitmain’s hardware and/or software.
  • Bitmain recommends Bitmain original PSU
  • Caution: Wrong input voltage may probably cause miner damaged and shall not be covered by the warranty.

Operating Condition

Max ambient temperature 40°C, altitude 0m.

Usually, when the miner is used at an altitude from 900m to 2000m, the highest operating temperature decreases by 1℃ for every increase of 300m.

Caution: Keep your Hash boards below 70°C degree temperature for optimal life-time of the ASIC Miners.

SHA-256 – Bitcoin Mining Pools

foundrydigital (Recommended) (FPPS / 0%)

Antpool (Recommended) (FPPS / 4%, PPLNS / 0%)

binance (FPPS / 2.5%)

f2pool (PPS+ / 2.5%)

 viabtc (PPS+ / 4%, PPLNS / 2%, SOLO / 1%)

luxor (FPPS / 2.5%)

emcd (FPPS / 1.5%)

poolin (FPPS / 2.5%)

sbicrypto (FPPS / 1%, PPLNS / 0.5%)

ultimuspool (FPPS / 4%)

pega-pool (PPS+ / 2%)

trustpool (PPS+ / 1%)

Is Mining Bitcoin Profitable?

Yes, Bitcoin mining is still profitable. However, it’s subject to your electricity price.

Bitmain Warranty

Bitmain supply their customers with a 1 year warranty, however, that warranty comes with limitations. For example, the warranty won’t be valid if you overclock the miner (running it at a higher speed than it was designed to run). Also, if you use an inappropriate power supply or generate environmental damage to your miner you won’t be eligible for a warranty (e.g. lightning strike, corrosion due to the wet environment).

The following events will void the warranty:

  • Customer removes/replaces any components by himself without receiving written permission from manufacturer
  • Damage caused by poor power supply, lightning or voltage surges
  • Burnt parts on hash boards or chips
  • Boards/components damage due to water immersion or corrosion due to wet environment
  • Bitmain’s product warranty does not cover damages caused by overclocking, even when overclocking is enabled via hardware and/or software.

If one of the cases above happens, you shall not be able to claim the warranty. For any specific procedures, please refer to the after-sales process.

Please don’t send any machine or parts without contacting the technical support team first. Any loss or damage as a result of lack of contact will be the responsibility of the customer.

For all repairs, within warranty or not, customer must return the defective parts at their own expense after opening a support ticket and troubleshooting with Bitmain’s instructions. 


What are the coins can you mine with Bitmain Antminer S21 Imm 239TH SHA-256 (Algorithm)?
Acoin (ACOIN), Curecoin (CURE), Joulecoin (XJO), Unbreakable (UNB), eMark (DEM), Peercoin (PPC), BitcoinCash (BCH), Bitcoin (BTC), Terrracoin (TRC), BitcoinSV (BSV).

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