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Power
3625W
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Hashrate
290.00 TH/s
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Efficiency
12.5 J/T
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Algorithm
SHA-256
Bitdeer SealMiner A3 PRO AIR Bitcoin Miner 290TH/S | BT-MINERS
US$4,899.00
High Efficiency: one of most efficient bitcoin miner with 12.5 J/TH energy efficiency
High Reliability: Built for 24/7 continuous mining operation
Global delivery with quick support from BT-MINERS
Warranty : Come with 360 days factory warranty.
A3 Pro Air Profitability Calculate
Daily Earning
ROI
Electricity
Electricity ratio
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Miner Profitability History
Description
The Bitdeer SealMiner A3 PRO AIR offers a powerful 290TH/s hash rate with a 3625W power consumption, making it a highly efficient choice for industrial-scale Bitcoin mining. Perfect for large mining farms or hosting environments, this miner operates with low noise and requires a 220V–240V power input. Featuring advanced cooling technology, it ensures optimal performance during intensive operations. BT-MINERS offers fast worldwide shipping, thorough testing, and dedicated customer support to ensure your mining setup is up and running seamlessly.
For Brand NEW Miner, Bitdeer Provides 360 days of factory warranty.
Technical Specifications
| Product Glance | Value |
|---|---|
| Model | Sealminer A3 PRO AIR |
| Crypto algorithm/coins | SHA-256|BTC/FB/NMC |
| Typical hashrate | 290.00 TH/s |
| Power on wall @35℃, Watt | 3625W |
| Power efficiency on wall@35℃ | 12.5 J/T |
| Detailed Characteristics | Value |
|---|---|
| Power Supply | |
| Phase | 1 |
| Input voltage, Volt | 220V–240V |
| Input frequency range, Hz | 50~60 |
| Input max current, Amp | 20 Amp |
| Hardware Configuration | |
| Server size(length*width*height, w/o package), mm | Ethernet 10/100M |
| Server size(length*width*height, with package), mm | 197*365*292 |
| Net weight, kg | 308*482*423 |
| Gross weight, kg | 15.5 |
| Noise@30℃, dBA | 17.5 |
| Environment Requirements | Value |
|---|---|
| Storage temperature, °C | -20~70 |
| Operation humidity(non-condensing), RH | 10~90% |
| Operation temperature,°C | -20~45 |
| Operation altitude, m | ≤2000 |
| What's in the Box | Value |
|---|---|
| Original factory mining machinery | ✓ |
| Power supply | ✓ |
| Shockproof packaging | ✓ |
Notes
(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.
Estimate time
Please select your preferred product batch – Available Now (In Stock) for immediate shipment or Month Batch for delivery within your chosen timeframe. If no selection is needed, the product is in stock and ready to ship. If you haven’t received your miner after the estimated time, please contact us at store@bt-miners.com, and our team will assist you promptly.
Shipping
All used miners will undergo testing by our certified technicians before shipping, which requires 3-5 business days. New miners will be shipped from our Shenzhen or Hong Kong warehouse, with international delivery taking approximately 5-10 business days via DHL. Once your order is shipped, you will receive a confirmation email with a tracking number. Shipping fees are calculated based on product type and weight, varying by region.
Returning policy
All sales are final and non-refundable after shipment, but we offer repair and replacement services if there are technical issues with your miner.
SEALMINER A3 PRO AIR Description
The Bitdeer SealMiner A3 PRO AIR delivers an impressive 290TH/s hash rate with a power consumption of 3625W, making it an excellent option for professional Bitcoin miners seeking high efficiency and reliability. The A3 PRO AIR is engineered for continuous mining operations, ensuring stable performance even under high load. It is designed for large-scale mining farms, offering a balance between power and efficiency to maximize profitability.
To achieve optimal performance, ensure the miner is installed in a well-ventilated environment with proper airflow. It operates on a standard 220V–240V power input and comes with an advanced cooling system that helps maintain stable operating temperatures, reducing the risk of overheating and downtime. The Bitdeer SealMiner A3 PRO AIR is a valuable tool for any mining farm looking to scale up operations while minimizing energy consumption.
BT-MINERS provides a complete package, including thorough pre-shipment testing, fast worldwide delivery, and excellent customer support, ensuring that your miner is ready for action as soon as it arrives.
Bitdeer Legacy & Product Line
Bitdeer Technologies is a global Bitcoin mining infrastructure company known for its strong presence in large-scale mining operations and high-performance ASIC hardware development. Founded by industry veterans with deep roots in the Bitcoin mining ecosystem, Bitdeer has built and operated mining data centers across North America, Europe, and Asia. This hands-on operational experience gives the company a practical understanding of power efficiency, thermal management, and long-term hardware reliability.
Bitdeer’s hardware offerings are marketed under the SealMiner brand, a product line designed specifically for professional and industrial Bitcoin mining. SealMiner miners focus on the SHA-256 algorithm and are engineered to deliver high hashrate while maintaining competitive energy efficiency. Rather than targeting entry-level or home users, Bitdeer products are optimized for environments where uptime, stability, and scalability are critical.
The SealMiner A Series, including advanced hydro-cooled models such as the SealMiner A3 Pro Hyd, reflects Bitdeer’s emphasis on thermal control and dense deployment. Hydro cooling helps reduce noise, improve heat dissipation, and extend hardware lifespan in large mining facilities.
Today, Bitdeer stands alongside established manufacturers like Bitmain and MicroBT, offering miners an alternative backed by real mining operations experience. Its product line is built for miners who prioritize efficiency-driven performance and sustainable, long-term Bitcoin mining operations.
SealMinr A3 Pro Air vs Antminer S21 XP
The Bitdeer SealMiner A3 Pro Air offers a higher hashrate than the Antminer S21 XP while operating at a similar power level, resulting in better efficiency per terahash. Its 220–240V power requirement makes it easier to deploy in a wider range of mining facilities. The S21 XP remains a strong option for operators already standardized on Bitmain hardware and high-voltage infrastructure, but the A3 Pro Air provides greater flexibility and output in comparable conditions.
| Field | SealMiner A3 Pro Air | Antminer S21 XP |
|---|---|---|
| Model | A3 Pro Air | S21 XP |
| Algorithm | SHA-256 | SHA-256 |
| Hashrate | 290 TH/s | 270 TH/s |
| Power | ~3625 W | ~3645 W |
| Efficiency | ~12.5 J/TH | ~13.5 J/TH |
| Cooling | Air-cooled | Air-cooled |
| Voltage | 220–240 V | 380–415 V |
| Noise | High (industrial fans) | High (industrial fans) |
| Best For | Flexible power environments | High-voltage mining farms |
| Notes | Higher hashrate at similar power | Optimized for Bitmain ecosystem |
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Processing&Shipping Time
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Payment Policies
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Taxes and Custom Duties
Processing&Shipping Time
Payment Policies
Taxes and Custom Duties
All shipments will go out by UPS or DHL.
Please contact us if any documentations are requested by customs.
Our product are excluded of all value added taxes and customs duties sold by BT-Miners. You will be solely responsible for paying any outstanding taxes and duties as per your country’s law and customs. Client will be responsible for additional shipping charges if items are returned to sender.
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 subject to card processing fees.
We can accept payment by credit/ debit card, wire transfer, ACH transfer (through our online portal), and crypto.
*Machine prices will fluctuate according to the current market price.*
All orders will be dispatch in the order which they were received. Pre-orders typically ships at the end of the month of the batch but may delay if manufacturer delays release/shipment. In stock machines ship in 3-7 business days from our warehouse in China. Bulk orders may release a few days later.
We always try to ship as soon as we can via USP or DHL after full payment has been received and verified.
International shipping usually takes about 5-8 business days. Due to changing regulations, we will not be able to cover duty tax for all orders entering USA. Deliveries to other countries may require customers to clear customs and pay duty tax. Please notify us right away if documents are requested by customs as improper filing may result in higher fees and/or delays.
All sales are final and non-refundable on any terms.
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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.
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What is the SealMiner A3 Pro Air hashrate?
It delivers up to 290 TH/s of SHA-256 mining power.
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How efficient is this miner?
Approximately 12.5 J/TH, optimizing electricity cost per TH.
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Which power input does it require?
Standard 220–240 V power input.
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Is it suitable for home mining?
Better for hosted or professional setups; ensure adequate ventilation.
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Which coins can it mine?
BTC, BCH, and BSV mining via the SHA-256 algorithm.
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Does BT-MINERS test this miner pre-shipment?
Yes, all units undergo testing before delivery.
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What cooling does it use?
Air cooling system with optimized fans.
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Is warranty included?
Factory warranty terms depend on batch; check with BT-MINERS.
