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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

Mineshop checkout options

Order confirmed within 24h
  • Tracked deliveryTo all 27 EU countries

  • Warranty & supportAfter-sales help

  • Card, bank, cryptoSecure checkout

Calculate profitability

Estimate

Miner revenue varies with coin mining difficulty

€
Profit / day
+€5.16
Profit over 200 days
+€1,032
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

3.63 kW

Hashrate

290Th/s

Efficiency

12.5 J/TH

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

  • Crypto Algorithm: SHA-256 (BTC / BCH / BSV)

  • Hashrate: 260–320 TH/s (standard 290 TH/s)

  • Power Efficiency: 12.5 J/TH ± 5%

  • Power Consumption: 3250–4000W (typical: 3625W)

  • Cooling: Advanced air cooling system with dual-fan design

  • Noise Level: 3–4 dB quieter than mainstream miners (~≤75 dB)

  • Power Supply: Built-in PSU with 97% power efficiency

  • Connectivity: RJ45 Ethernet 10/100M

  • Dimensions: 197 × 365 × 292 mm

  • Net Weight: 15.5 kg (17.5 kg gross)


What’s Included in the Package

  • 1 × SEALMINER A3 Pro Air ASIC miner

  • Integrated 97% efficient PSU

  • Ethernet connection port (RJ45)

  • User manual & quick-start guide

  • 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

  • Category: Industrial ASIC Bitcoin miner

  • Intended Use: Mid to large-scale crypto mining operations

  • Cooling Type: Air cooled (efficient fan system)

  • Not: Hydro or immersion cooled


Profitability Disclaimer

Mining profitability depends on multiple factors:

  • Electricity rates in your location

  • Bitcoin market price

  • 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

Factory warranty per manufacturer guidelines
Working product delivery guaranteed
Full after-sales support team

Terms of Sale

Payment proof required within 24 hours
Reservation confirmed upon receipt of payment
Industrial ASIC miners: all sales are final. Other products: 14-day return if unopened.

Shipping Information

Express: Europe 1–3 days, US & Asia 2–5 days
Economy: Europe 3–6 days
Dispatch within 7 working days
Ships via DHL, FedEx & UPS

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