Antminer S21 – 200Th/s SHA-256 Mining with 3500W Power and Advanced Air Cooling
Buy Antminer S21 (200Th/s), manufactured by Bitmain, is one of the most advanced air-cooled SHA-256 ASIC miners available today. Delivering a high-performance 200 terahashes per second (Th/s) at just 3500W power consumption, it offers an excellent balance of speed, efficiency, and reliability. Released in March 2024, the S21 is optimized for both seasoned miners and large-scale facilities seeking future-proof hardware.
Technical Specifications
Designed for maximum uptime and minimal disruption, the S21 includes four high-speed fans and a well-ventilated chassis. Its durable frame and smart voltage range ensure stable performance under variable power conditions.
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Hashrate: 200Th/s
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Power Consumption: 3500W
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Cooling System: 4 fans (air-cooled)
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Noise Level: 75db
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Voltage Input: 220–277V
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Networking: Ethernet (RJ45)
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Net Size: 400 x 195 x 290mm
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Gross Size: 570 x 316 x 430mm
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Net Weight: 15.4kg
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Gross Weight: 17.2kg
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Temperature Range: 0–45°C
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Humidity Range: 10%–90%
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Storage Temperature: -20–70°C
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Warranty: 365 days
Because of its optimized power-to-performance ratio, the S21 provides a consistent return on investment while keeping energy costs predictable.
Why Choose the Antminer S21?
The Antminer S21 is built for miners who demand maximum hashrate with solid power efficiency in a compact, air-cooled system. It supports SHA-256 coins like Bitcoin (BTC) and Bitcoin Cash (BCH), and integrates easily into existing rack systems.
Moreover, its impressive 17.5 J/Th (approximate) energy efficiency—paired with Bitmain’s 365-day warranty—makes it a reliable long-term choice. Whether you’re scaling operations or upgrading outdated hardware, the S21 sets a new standard for air-cooled mining.
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Outbound Link
🔗 Antminer S21 Series Overview – Bitmain.com













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