Antminer S21 (AIR) - 151 TH/s

Antminer S21 (AIR) - 151 TH/s: High-Efficiency SHA-256 ASIC Miner for Bitcoin Mining The Antminer S21 (AIR) is a top-tier ASIC miner built for the SHA-256 algorithm, delivering a powerful 151 TH/s hashrate for mining Bitcoin (BTC) and other SHA-256-based cryptocurrencies. With 17.50 J/TH efficiency and 2681W power consumption, it offers a great balance of performance and cost, ideal for small and large mining operations. Its advanced chips ensure high performance with low environmental impact, and its compact design fits easily into any setup. Choose shipping or hosting at $0.04/kWh electricity rates to boost profitability. Historical and Projected Profitability Profitability Chart: Based on current market data, daily earnings range from $3 to $5 USD, averaging $3.52 with $0.04/kWh rates. The Antminer S21 (AIR) achieves ROI in 8-11 months, depending on Bitcoin prices and energy costs. Technical Specifications Specification Details Vendor Bitmain Brand Antminer Model S21 (AIR) Hash Rate 151 TH/s Algorithm SHA-256 Supported Coins Bitcoin (BTC) Power Consumption 2681 W Energy Efficiency 17.50 J/TH Cooling System Air cooling (2 fans) Power Cord Shipped according to client's destination Dimensions 400 x 195 x 290 mm Noise Level 75 dB Operating Temperature 5°C to 40°C Network Interface Ethernet Release Date February 2024 Profitability and ROI Insights Use our Profitability Calculator to estimate earnings based on Bitcoin prices, $0.04/kWh hosting rates, and network difficulty. Flexible Deployment Options: Shipping or Hosting Shipping: Direct delivery from Shenzhen via DHL, UPS, FedEx, or TNT in 5-7 days. Secure packaging with tracking; costs vary by location (e.g., 10% tax in USA from April 2025). Bulk orders over $500,000 get custom pricing. Hosting: Deploy in USA, Dubai, Norway, Finland, Ethiopia or Nigeria with $0.04/kWh rates. Enjoy hands-off operation with 24/7 maintenance. Location Electricity Rate ROI USA $0.059 / kWh 10.1 month(s) Nigeria $0.048 / kWh 9.2 month(s) Ethiopia $0.053 / kWh 9.6 month(s) Dubai $0.054 / kWh 9.7 month(s) Finland $0.061 / kWh 10.3 month(s) Norway $0.064 / kWh 10.7 month(s) Hosting Benefits 7-Year Full Warranty 95%+ Uptime Deployment in 1-7 Days Exchange Services for FIAT and cryptocurrencies 0% Mining Fee – Keep all coins Hosting reduces infrastructure needs and maximizes profits with low-cost energy. Key Features and Benefits High Hashrate and Efficiency: Offers 151 TH/s and 17.50 J/TH efficiency for lower energy costs. Advanced Chip Technology: Next-gen Bitmain chips delivering extreme Bitcoin hash power. Compact Design: Fits at 400 x 195 x 290 mm with durable build. Enhanced Security: Protects against threats with built-in safeguards. Easy Monitoring: Tracks hashrate, power, and temperature with adjustable settings. Versatile Algorithm: Supports SHA-256 and multi-coin mining. Stable Connectivity: Ensures reliable remote management via Ethernet. Why Choose the Antminer S21 (AIR)? The Antminer S21 (AIR) dominates SHA-256 mining with 151 TH/s hashrate and elite 17.50 J/TH efficiency. Proven Bitmain reliability and strong cooling make it perfect for any scale, while $0.04/kWh hosting maximizes profitability. Ideal for serious miners looking for long-term Bitcoin earnings. Warranty, Shipping, and Support Warranty: 7 years for hosted, 12 months for shipped (voided by misuse). Shipping: 5-7 day global delivery with tracking; bulk orders get quotes. Payment Options: Accepts cryptocurrency or wire transfer; hosting costs deduct from profits. Customer Support: 24/7 assistance for setup, troubleshooting, and more. In stock – ships immediately! Start mining Bitcoin today — shipped or hosted. Contact us for bulk pricing.