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Antminer s21

Antminer S21

Antminer S21 — 200 TH/s High-Efficiency Miner

The Bitmain Antminer S21 delivers a typical 200 TH/s hashrate at around 3,500 W, achieving approximately 17.5 J/TH efficiency. It’s an air-cooled SHA-256 miner built for continuous, stable operation in professional environments. With a compact chassis, robust four-fan cooling, and industrial power compatibility, the S21 is a practical upgrade from S19-series units for better performance per watt.

Highlights

  • 200 TH/s hashrate, ~3,500 W power, ~17.5 J/TH efficiency
  • Air-cooled thermal design for 24/7 uptime
  • Compact, rack-friendly footprint for dense deployments
  • Suitable for 220–277 V industrial power setups
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Antminer S21 Specifications

Technical Details

  • Model / Algorithm: Antminer S21 / SHA-256
  • Hashrate: 200 TH/s (±5%)
  • Power Consumption: ~3,500 W
  • Efficiency: ~17.5 J/TH
  • Input Power: 220–277 V AC, 50/60 Hz (three-phase recommended)
  • Cooling / Noise: Air-cooled, multi-fan; typical ASIC noise under load
  • Dimensions / Weight: ~400 × 195 × 290 mm; ~15–16 kg (batch dependent)
  • Operating Temperature: 0–45 °C with proper airflow
  • Networking: RJ45 Ethernet (wired)

Setup Tips

  • Use a stable 220–277 V line with proper grounding and surge protection.
  • Maintain clean intake/exhaust airflow; avoid dust and humidity.
  • Use wired Ethernet and a reliable pool for consistent performance.
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Purchase & Shipping

  • Condition: 100 % brand-new (factory-sealed)
  • Warranty: Official Bitmain manufacturer warranty
  • Payment Methods: Bank transfer, USDT, BTC, or USDC
  • Shipping: Worldwide from UAE via DHL, FedEx, or cargo (3–7 business days).
  • Based in Dubai, UAE — trusted international supplier
  • Fast global shipping to GCC, Africa and Asia
  • Expert consultation before and after purchase
  • Transparent pricing and real-time availability


⚠️ Important Notice:

Mining regulations vary by country. Please contact our support team before purchase so we can verify compliance and select the most reliable delivery method for your region.

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⚠️ We don’t display prices on our website to make sure you get the best possible deal directly from our sales team.

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Contact Our Team

Have questions or need help choosing the right miner?
Our experts are available to guide you with pricing, testing options, and shipping details.

  • Location : 41 Nad Al Hamar Rd - Dubai
  • WhatsApp: +971 50 317 4155
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Customer Reviews

Based on 66 reviews
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(56)
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S
Samia Al-Ahmad
Bitmain Antminer S21 Profitability in UAE

Bought from Aryaminer, very profitable and energy-efficient, delivered quickly in UAE.

Thank you Samia Al-Ahmad for choosing Aryaminer!

J
Jamal Al-Khouri
S21 Antminer Bought from Aryaminer in Bahrain

Aryaminer is reliable, fast shipping, product is highly efficient and profitable in Bahrain.

Thank you Jamal Al-Khouri for choosing Aryaminer!

N
Nada Al-Khalid
Antminer S21 195Th Bought from Aryaminer in Dubai

Excellent product, Aryaminer provided quick delivery, highly efficient, very satisfied.

Thank you Nada Al-Khalid for choosing Aryaminer!

K
Khalifa Al-Mohamed
Bitmain Antminer S21 from Aryaminer in UAE

Highly satisfied with Aryaminer, very efficient miner, quick delivery to UAE.

Thank you Khalifa Al-Mohamed for choosing Aryaminer!

S
Salma Al-Habib
S21 Antminer Profitability in Abu Dhabi

Aryaminer offers great service, product is highly profitable and delivered quickly to Abu Dhabi.

Thank you Salma Al-Habib for choosing Aryaminer!