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Power
1800W
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Hashrate
3.40 GH/s
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Efficiency
529.41 J/G
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Algorithm
NexaPow
DragonBall A21 NEXA Miner 3.4G | BT-MINERS
US$3,999.00
A21 Profitability Calculator
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Miner Profitability History
DragonBall A21 Description
DragonBall A21 is manufactured by DragonBall. It’s mining NEXA, which runs a maximum hashrate of 3.4TH/s for a power consumption of only 1800W.
New miners come with a 6 month warranty from the manufacturer.
Specifications
| Specification | Detail |
|---|---|
| Model | DragonBall A21 |
| Algorithm | NexaPow |
| Cryptocurrency | NEXA |
| Hashrate | 3.4GH/s ±5% |
| Power Consumption | 1800W ±10% |
| Voltage Input | 165–300V |
| Dimensions (without package) | 360mm x 185mm x 290mm |
| Dimensions (with package) | 475mm x 294mm x 384mm |
| Net Weight | 16.1 kg |
| Gross Weight | 17.4 kg |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 70°C |
| Humidity (non-condensing) | 10% to 90% |
| Operating Altitude | ≤2000m |
| Warranty | 6 months by the manufacturer |
Download tools: dragonball_tools_V1.0.7.7z
Technical Specifications
| Product Glance | Value |
|---|---|
| Crypto algorithm/coins | NexaPow|NEXA |
| Typical hashrate | 3.40 GH/s |
| Power on wall @35℃, Watt | 1800W |
(1) The hashrate value, power on wall, and power efficiency on wall are all typical values. The actual hashrate value fluctuates by ±3%, and the actual power on wall and power efficiency on wall fluctuate by ±5%.
(2) Caution: Wrong input voltage may cause server damaged.
(3) The noise is loudest when the fan is under maximum RPM(rotation per minute).
(4) When the server is used at an altitude from 900m to 2000m, the highest operating temperature decreases by 1℃ for every increase of 300m.
Estimated dispatch and delivery
Please select the applicable product batch. Future-batch and pre-order products follow the manufacturer’s actual release and dispatch schedule. Manufacturer delays may occur, and BT ECOMMERCE CO., LIMITED is not responsible for losses arising from those delays. If no batch selection is shown, the product is treated as in stock.
Shipping
New in-stock miners are normally dispatched within 1–3 business days after full payment is verified. Used in-stock miners require testing and are normally dispatched within 3–7 business days after full payment is verified. After dispatch, delivery usually takes 5–7 business days, subject to customs clearance and local carrier conditions. A tracking number will be emailed after shipment.
Cancellation, returns and faults
All sales are final and non-refundable. A cancellation may be requested before the order is handed to the carrier and is subject to a 25% cancellation fee. Orders cannot be cancelled after handover to the carrier. If a miner is faulty on arrival, contact us promptly. After diagnosis, eligible cases will be handled by repair or replacement only; no refund will be issued. Contact store@bt-miners.com for assistance.
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Processing & Shipping Time
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Payment Policies
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Taxes and Custom Duties
Order Processing
New in-stock miners are normally dispatched within 1–3 business days after full payment is verified. Used in-stock miners require testing and are normally dispatched within 3–7 business days after full payment is verified. Future-batch and pre-order products follow the manufacturer’s actual release and dispatch schedule. Manufacturer delays may occur, and BT ECOMMERCE CO., LIMITED is not responsible for losses arising from those delays.
Shipping Carriers
Orders are shipped through reputable international carriers such as DHL, UPS or FedEx. A tracking number will be emailed after dispatch.
Estimated Delivery
Delivery usually takes 5–7 business days after dispatch. Customs clearance and local carrier conditions may affect the actual delivery date.
Cancellation and Faults
All sales are final and non-refundable. A cancellation may be requested before handover to the carrier and is subject to a 25% cancellation fee. Orders cannot be cancelled after handover to the carrier. Faulty-on-arrival miners are handled by repair or replacement only after diagnosis.
Contact us at store@bt-miners.com or 813-820-0668 if you have any questions.
All products on our website are priced in US Dollars.
Payment made by credit or debit card may be subject to card processing fees.
We can accept payment by credit or debit card, wire transfer, ACH transfer (through our online portal), and crypto.
Bank transfer clearing times vary by bank and location. Cryptocurrency payments are typically confirmed within 1 business day.
*Machine prices will fluctuate according to the current market price.*
Customs & Delivery
Shipments are managed through DHL, UPS and FedEx for most international destinations. Due to changing regulations, we may not be able to cover import duties for all orders entering the USA. Deliveries to other countries may require customers to clear customs and pay duties or taxes. Please notify us promptly if customs requests documents, as improper or delayed filing may result in additional fees or delays.
DDP Option
Delivery Duty Paid (DDP) service may be available in select countries. Advance arrangement is required; please contact store@bt-miners.com for details.
Returns for Repair or Replacement
If diagnosis requires a miner to be returned to Hong Kong or another service location, the customer is responsible for related shipping charges unless otherwise agreed in writing.
All sales are final and non-refundable. A cancellation may be requested before handover to the carrier and is subject to a 25% cancellation fee. Orders cannot be cancelled after handover to the carrier. Eligible faulty-on-arrival cases are handled by repair or replacement only.
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FAQs
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What Is The Lifespan Of This Mining Machine?
The lifespan of mining hardware is influenced by usage intensity, environmental factors like temperature, humidity, and dust. Proper maintenance and optimal conditions can significantly extend its longevity.
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How Does Electricity Cost Impact Profitability?
Electricity costs play a crucial role in mining profitability, as high rates can quickly offset profit. Therefore, it is vital to access local electricity costs to determine if mining is viable. With high electricity costs and high liquidity of digital assets, investing in an energy-efficient miner becomes even more important.
