Bitcoin Miner S21 Pro – 234 TH/s Air‑Cooled Miner

The Antminer S21 Pro offers 234 TH/s at 15 J/TH efficiency with air cooling, SPOT shipping in 7 days, and a 365‑day warranty.

 Antminer S21 Pro Overview

The Bitmain Antminer S21 Pro is an air‑cooled SHA‑256 miner designed for Bitcoin, BCH, and BSV. With a hashrate of 234 TH/s and energy efficiency of 15 J/TH, it delivers reliable mining performance with optimized cooling and manageable noise levels.

Key Specifications

• Hashrate: 234 TH/s (typical, range 220–245 TH/s)
• Power Consumption: 3510W (typical, range 3300–3675W)
• Efficiency: 15 J/TH
• Algorithm: SHA‑256 (BTC/BCH/BSV)
• Cooling: Air‑cooled
• Noise Level: 76 dB
• Dimensions (unit): 450 × 219 × 293 mm
• Dimensions (packaged): 630 × 350 × 430 mm
• Weight: 18.5 kg net / 21.5 kg gross
• Voltage: 220–277V AC, single‑phase
• Interface: RJ45 Ethernet
• Max Airflow: 550 CFM
• Environment Requirements: Operating temp −20 to 45 °C; humidity 10–90% RH; altitude ≤2000m

🛒 Purchasing Guidelines

• Price: $3,744 per unit (~$16 per TH)
• Payment Methods: USD, BTC, ETC, USDC (ERC20), USDT (ERC20/TRC20)
• Availability: SPOT shipping within 7 working days after full payment
• Customs: Buyers must prepare proper documentation; cancellations or refunds are not accepted after order submission
• Images: Product photos are for reference only; final shipment version may differ

🚚 Shipping Details

• Dispatch: First‑paid, first‑shipped basis
• Responsibility: Buyer must handle customs clearance and documentation
• Certificates: Certificates of conformity are available for download

🛡 Warranty

• Coverage: 365 days from shipping date
• Includes: Replacement shipping costs covered by Bitmain within warranty period
• Exclusions: Resold units, improper installation, unauthorized modifications

⚠️ Buyer Considerations

• Requires 220–277V AC single‑phase power
• Air‑cooled design means moderate noise levels (76 dB)
• Profitability depends on Bitcoin difficulty and electricity rates
• Ensure proper ventilation to maintain efficiency