



BitDeer SEALMINER A3 Pro Air Asic miner
SKU: SEAL-A3PRO-AIR
January 2026 batch Shipping
- Hashrate290 TH/s
- Power3625 W
- Efficiency12.5 J/TH
- AlgorithmSHA-256
- CoinBTC
€4,999.87
(excl.VAT)Guaranteed Safe Checkout
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Tracked deliveryTo all 27 EU countries
Warranty & supportAfter-sales help
Card, bank, cryptoSecure checkout
Calculate profitability
EstimateMiner revenue varies with coin mining difficulty
- Profit / day
- +€5.16
- Profit over 200 days
- Break-even electricity price
- €0.109/kWh
- Pays for itself in
- ≈ 2.7 years≈ 3.3 years
Live daily miner revenue €9.51 Power cost / day €4.35
Revenue and profit per day
- Revenue
- Profit at €0.05/kWh
Estimate for 290 TH/s at today’s Bitcoin difficulty, block reward and BTC price (mempool.space, CoinGecko; updated 2026-10-28 18:56 UTC), before pool fees. Power cost = watts × 24 h × your price per kWh.
Specifications: BitDeer SEALMINER A3 Pro Air Asic miner
Coin
BTC
Consumption
Hashrate
Efficiency
ModelA3 Ari
Also Known AsBitdeer Sealminer A3 Air
CoinBitcoin, BCH
Release2026-01-31
Hashrate290Th/s
Noise Level70db
Sizes197x365x292mm
Consume, kWh3625w
Energy Efficiency12.5jTh/s
Fans4
Voltage100-220v
InterfaceEthernet
Temperature0-40c
Warranty360days
Description for: BitDeer SEALMINER A3 Pro Air Asic miner
🐧 SEALMINER A3 Pro Air – High-Efficiency Bitcoin ASIC Miner (290TH/s | 12.5J/TH)
The SEALMINER A3 Pro Air is a next-generation SHA-256 ASIC miner engineered for Bitcoin (BTC), Bitcoin Cash (BCH), and BSV mining. Built with the SEAL03 chip, it achieves a powerful 290 TH/s hashrate while maintaining an industry-leading efficiency of 12.5 J/TH.
Designed for air-cooled deployments, the A3 Pro Air combines compact design, powerful cooling, and quiet operation—making it a scalable mining hardware solution for both mid-sized farms and professional operations.
Key Features
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Crypto Algorithm: SHA-256 (BTC / BCH / BSV)
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Hashrate: 260–320 TH/s (standard 290 TH/s)
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Power Efficiency: 12.5 J/TH ± 5%
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Power Consumption: 3250–4000W (typical: 3625W)
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Cooling: Advanced air cooling system with dual-fan design
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Noise Level: 3–4 dB quieter than mainstream miners (~≤75 dB)
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Power Supply: Built-in PSU with 97% power efficiency
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Connectivity: RJ45 Ethernet 10/100M
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Dimensions: 197 × 365 × 292 mm
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Net Weight: 15.5 kg (17.5 kg gross)
What’s Included in the Package
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1 × SEALMINER A3 Pro Air ASIC miner
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Integrated 97% efficient PSU
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Ethernet connection port (RJ45)
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User manual & quick-start guide
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6-month manufacturer warranty
Technical Specifications
| Specification | Details |
|---|---|
| Algorithm | SHA-256 |
| Supported Coins | BTC / BCH / BSV |
| Hashrate | 260–320 TH/s (290 TH/s standard) |
| Efficiency | 12.5 J/TH ±5% |
| Power Consumption | 3250–4000W (typ. 3625W) |
| Max Input Power | 4400W |
| Voltage Range | 220–277V AC |
| Input Current | 20A max |
| Frequency Range | 47–63 Hz |
| Dimensions (Net) | 197 × 365 × 292 mm |
| Weight (Net) | 15.5 kg |
| Cooling System | Air cooled, enhanced airflow design |
| Operating Temp | -20°C to 45°C |
| Operating Humidity | 10%–90% RH |
| Altitude | ≤2000 m |
Miner Classification
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Category: Industrial ASIC Bitcoin miner
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Intended Use: Mid to large-scale crypto mining operations
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Cooling Type: Air cooled (efficient fan system)
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Not: Hydro or immersion cooled
Profitability Disclaimer
Mining profitability depends on multiple factors:
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Electricity rates in your location
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Bitcoin market price
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Mining difficulty adjustments
With 12.5 J/TH efficiency, the SEALMINER A3 Pro Air is among the most efficient miners available, but always calculate ROI based on local conditions.
Frequently Asked Questions (FAQ)
Q1: What coins can the SEALMINER A3 Pro Air mine?
It mines Bitcoin (BTC), Bitcoin Cash (BCH), and BSV—all SHA-256 coins.
Q2: Is this a home miner or industrial miner?
It is an industrial air-cooled miner designed for farms, though quieter than typical large ASICs.
Q3: How efficient is the power supply?
It includes a 97% efficient PSU, reducing energy loss.
Q4: How loud is it?
It runs 3–4 dB quieter than mainstream models, but still best suited for mining facilities.
Q5: What’s the standard hashrate?
It operates at a stable 290 TH/s, with a range between 260–320 TH/s.
Why Choose SEALMINER A3 Pro Air?
The SEALMINER A3 Pro Air sets new standards in Bitcoin mining efficiency with 12.5 J/TH power performance, quiet operation, and robust air cooling. Perfect for miners who demand scalable, reliable, and power-efficient mining hardware.
Warranty When ordering mining rig, you agree that it is customized for most optimal mining. Mining rig parts comes with 360 days factory warranty. Please see manufacturer guidelines for the warranty HERE.
TERMS OF SALE
- Please provide payment proof within 24 hours of your order being placed
- A unit can only be reserved once payment has been received, not when an order is placed online
- All sales are final, no refunds will be granted
Shipping :
- Typical dispatch time within 7 working days
- Full customer support before and after purchase
Europe express delivery 1-3 days , economy shipping 3-6 days. US and Asia shipping 2-5 days to deliver to your door. All items shipped with DHL.
Warranty
Terms of Sale
Shipping Information




