Operating on the reliable SHA-256 algorithm, this hardware is engineered to mine Bitcoin (BTC), Bitcoin Cash (BCH), and Bitcoin SV (BSV) with maximum uptime and competitive power efficiency.
Core Technical Specifications
| Feature | Specification |
| Manufacturer | Bitmain |
| Model | Antminer T21 (186 TH/s variant) |
| Hashrate | $186 \text{ TH/s} \pm 3\%$ |
| Power Consumption (on wall) | $\sim 3530\text{W} \pm 5\%$ |
| Power Efficiency | $19.0 \text{ J/TH}$ |
| Algorithm | SHA-256 (BTC / BCH / BSV) |
| Required Input Voltage | 3-Phase AC 380~415V |
| Cooling Technology | 4 High-Speed Air-Cooling Fans |
| Dimensions (w/o package) | $400 \times 212 \times 290 \text{ mm}$ |
| Net Weight | $17.0 \text{ kg}$ |
| Network Interface | RJ45 Ethernet 10/100M |
Key Features & Performance Highlights
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Elite Energy Efficiency ($19.0 \text{ J/TH}$): The Antminer T21 utilizes next-generation semiconductor architecture to push computational boundaries while keeping overhead low. Running at an exceptional efficiency rating of $19 \text{ Joules per Terahash}$, it helps you preserve your mining margins post-halving.
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Dual-Mode Adaptability: The T21 platform is highly flexible, allowing fleet operators to toggle between standard efficiency modes and high-energy throughput optimization depending on current energy costs and network difficulty spikes.
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Industrial-Grade 3-Phase Power System: Engineered for professional operations, the T21 utilizes a 380-415V three-phase electrical input. This drastically reduces input current requirements, minimizes heat accumulation on power lines, and guarantees rock-solid stability compared to traditional single-phase setups.
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Robust Thermal & Environmental Engineering: Equipped with four heavy-duty, high-RPM cooling fans, the T21 creates continuous, high-volume parallel airflow to move heat rapidly away from the critical hashboards. It is rated to operate smoothly at ambient intake temperatures up to 45°C.
Why Buy From CryptoMiners24?
When you acquire your mining infrastructure from CryptoMiners24, you get comprehensive logistics and hardware support from start to finish:
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Fully Insured Global Logistics: We partner with leading international carriers (DHL Express, FedEx, UPS) to provide secure, tracked, and fully insured door-to-door delivery.
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Verified Authentication: All equipment leaves our facilities with verified serial numbers and intact manufacturer seals, guaranteeing 100% authentic Bitmain production.
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Comprehensive Hardware Warranty: Covered by a full manufacturer repair and replacement warranty against component defects.
Upgrade your hash rate today. Add the Bitmain Antminer T21 186 TH/s to your fleet and secure your edge in global block production.





