Antminer S21 lmm.

(48 customer reviews)

Original price was: $4,368.00.Current price is: $3,333.00.

The Antminer S21 lmm. Bitcoin Miner delivers up to 301 TH/s for SHA256 mining. This immersion-cooled unit achieves a 16.0 J/TH efficiency in normal mode for maximum profit.

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Antminer S21 lmm. Bitcoin Miner – 301 TH/s Hashrate

The Antminer S21 lmm. Bitcoin Miner represents the next generation of SHA256 hardware. This advanced machine targets professional mining farms seeking maximum performance. Consequently, it utilizes the BM1368PM chip to maintain high efficiency levels. You can achieve incredible results using either Normal Energy Mode or High Energy Mode. Moreover, this liquid-cooled system operates silently at only 50 dB.

This Bitmain machine delivers exceptional power for Bitcoin and Bitcoin Cash networks. Therefore, the specialized oil immersion cooling technology manages heat extremely well. It supports an inlet oil temperature range between 30 and 55 degrees Celsius. Additionally, the unit operates within a standard humidity range of 10 to 90 percent. High-performance mining becomes simpler with this robust industrial hardware solution.

Antminer S21 lmm. Bitcoin Miner Features and Benefits

The Antminer S21 lmm. Bitcoin Miner provides a flexible 301 TH/s maximum hashrate. Consequently, operators can switch modes to optimize energy costs versus total output. The High Energy Mode consumes 5569 W while delivering peak mining speeds. Furthermore, the Normal Energy Mode reduces power to 3824 W for improved efficiency. This flexibility ensures your mining operation remains competitive in changing markets.

Industrial cooling remains a primary advantage for this high-performance liquid miner. Because it uses oil immersion, the device maintains stable temperatures during heavy workloads. This cooling method also significantly lowers the noise level compared to air-cooled models. Consequently, the hardware lasts longer and requires less frequent maintenance during its lifespan. Modern mining operations benefit greatly from these specialized thermal management features.

Why Choose Antminer S21 lmm. Bitcoin Miner

Professional miners choose the Antminer S21 lmm. Bitcoin Miner for its superior ROI potential. Indeed, the 16.0 J/TH efficiency rating sets a new standard for the industry. This 3-phase unit requires a voltage input between 380 and 415 V. Therefore, it integrates perfectly into existing industrial data center infrastructures. You can maximize your SHA256 mining rewards with this powerful and efficient equipment.

In conclusion, the Antminer S21 lmm. Bitcoin Miner offers the ultimate SHA256 mining solution. This device balances high hashrate with incredible energy efficiency for modern farms. It features a compact design with dimensions of 293 x 236 x 364 mm. Consequently, it fits easily into standard immersion tanks for large-scale deployments. Invest in this hardware today to secure your future in the digital currency space.


Antminer S21 lmm. Bitcoin Miner Technical Specifications

The Antminer S21 lmm. Bitcoin Miner contains several impressive technical components for hash processing. For instance, the BM1368PM chip drives the high-speed calculations for SHA256 algorithms. This machine weighs 17.15 kg and uses a standard RJ45 Ethernet connection. Consequently, you can monitor the device easily through any 10/100M network. Review the detailed performance metrics listed below for this model.

  • Hashrate: 239 TH/s (Normal Energy Mode) / 301 TH/s (High Energy Mode)
  • Power Consumption: 3824 W (NEM) / 5569 W (HEM)
  • Efficiency: 16.0 J/TH (NEM) / 18.5 J/TH (HEM)
  • Algorithm: SHA256 (BTC/BCH/BSV)
  • Chip: BM1368PM
  • Cooling: Oil immersion
  • Dimensions: 293 x 236 x 364 mm
  • Weight: 17.15 kg (Net) / 20.45 kg (Gross)
  • Operating Temperature: 30 – 55 °C (Inlet oil temperature)
  • Humidity: 10 – 90% (non-condensing)
  • Noise Level: 50 dB
  • Network Connection: RJ45 Ethernet 10/100M
  • Voltage: 380 – 415 V (3-phase)

Notes

  • Payment accepted in USDT, USDC, BTC, or USD. The unit price and total price of the products, and the amount paid are denominated in U.S. dollars.
  • The shipping costs, customs charges, and taxes(if any) are not included in the retail price shown above.
  • After an order has been submitted, a request to cancel the order, refund any part of the ordered amount or change the ordered item(s) to different item(s) or different batch(es) will not be entertained by BITMAIN.
  • The pictures shown are for reference only; the final shipment version shall prevail.
  • The Hashrate value, Power on wall, and Power efficiency on wall are all typical values, The actual Hashrate value fluctuates by ±3%, and the actual Power on wall and Power efficiency on wall fluctuate by ±5%.
  • Caution: Wrong input voltage may probably cause product damaged.

Shipping Details

  • Shipments will be scheduled on a first-paid-first-ship basis for orders on which BITMAIN has received full payment.
  • You are responsible for any customs delays or returned shipments due to a lack of proper documentation. It’s 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.

Warranty

  • A 365-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 re-seller.
  • If the user fails to use the product per 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 there from.
Hardware
Model

Antminer S21 Immersion (S21 lmm)

Network Connection

RJ45 Ethernet 10/100M

Power
Input Voltage

380-415 V AC

Input Frequency

50-60 Hz

Input Current

12 A

Phase

3-Phase

Power Consumption (NEM Mode)

3824 W ±5%

Power Consumption (HEM Mode)

5569 W ±5%

Performance
Algorithm

SHA-256

Hashrate (NEM Mode)

239 TH/s ±3%

Hashrate (HEM Mode)

301 TH/s ±3%

Power Efficiency (NEM Mode)

16.0 J/TH ±5%

Power Efficiency (HEM Mode)

18.5 J/TH ±5%

Physical
Weight (Net)

17.15 kg

Dimensions (Net)

293 x 236 x 364 mm

Dimensions (Gross)

600 x 390 x 450 mm

Weight (Gross)

20.45 kg

Environmental
Storage Temperature

-20-70 °C

Operating Humidity

10% – 90% (non-condensing)

Noise Level

≤50 dB

Inlet Oil Temperature

30-55 °C

Cooling
Cooling Method

Oil Immersion Cooling

Oil Flow

1 m³/h

48 reviews for Antminer S21 lmm.

  1. Alain David

    Super smooth purchase of my Antminer! The unit works flawlessly. Smooth transaction.

  2. Lina Schulz

    Very impressed with the Antminer delivery. Highly recommend this seller. Worth every penny.

  3. Lukas Meyer

    Excellent service! Packaging was secure and neat. No regrets.

  4. Lena Wolf

    Very impressed with the Antminer delivery. Exactly as described. Thumbs up!

  5. Maria Richter

    Super smooth purchase of my Antminer! The unit works flawlessly. Impressed by the speed.

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