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All products listed on our website are priced in US Dollars. We accept payments via bank wire transfer or online cryptocurrency payment (BTC, ETH, KAS, USDT, USDC). If you prefer offline payment, you can contact our online customer service. Verify and only use the official collection accounts below: TRC20 Start：TWPc8y End：ZAEHvT7b TRC20 Start：TXjmjuw End: XiHnxjc9 ERC20 Start：0xbca5ff End：fc74050b SOL Start：DGvECc6k End： dsmUnYsaQL Cold wallet: SOL Start：TU5hjN End： ZwwPkfuK USD bank account : Bank name: Asia Account Starts with 798, ends with 946 US account Starts with 820, ends with 154 Note: Offline orders are only valid when placed within the social media group that includes our CFO, Lili. (WeChat / Telegram / WhatsApp: +86 17868116983) Important: All cryptocurrency payments received on the website are automatically converted to USDT. If a product is out of stock, we will contact you for a refund. The refund will be based on the USD price at the time of your original order.

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We offer hassle-free DDP shipping to select destinations, including: ✅ United States | ✅ Canada | ✅ UAE (Dubai) | ✅ Select EU Countries Need DDP? Contact our support team before ordering. For Non-DDP Shipments: Customs duties and import taxes are not included in your order total and must be paid upon delivery. To help reduce potential fees, we can provide a lower declared value on the commercial invoice (upon request). Important: If customs requires additional documents, notify us immediately to avoid delays or extra charges. We’ll supply all necessary paperwork (e.g., commercial invoice, packing list) to ensure smooth clearance. Tip: Contact your local courier (DHL/UPS/FedEx) directly to handle duty payments swiftly.

Warranty & Buyer Protection

New Miners (Factory-Sealed): Warranty Period: 6–12 months (varies by manufacturer, starting from production date). Voided If: Damage occurs due to misuse, failure to follow instructions, or unauthorized modifications. Used Miners: No warranty or after-sales service is provided. Pre-Shipment Verification: Testing videos will be shared for your approval before shipment. Once confirmed, the sale is final. Returns & Repairs: Buyer Responsible for all return shipping and related costs. Repair Timeframe: Depends on the issue’s complexity (we’ll provide an estimate upon assessment). Note: All sales are final—please inspect testing materials thoroughly before confirming used miner orders.

Bitdeer SealMiner A3 Air 260Th/s 3640W Bitcoin Miner

Name: Bitdeer SealMiner A3 Air 260Th/s 3640W Bitcoin Miner - X ON MINING
Brand: Bitdeer
SKU: A3 Air
Price: 4295.00 USD
Availability: InStock

Bitdeer SealMiner A3 Air | 260Th/s Bitcoin Miner | 14 J/Th | Air-Cooled Efficiency

The Bitdeer SealMiner A3 Air is a high-performance ASIC miner engineered for SHA-256 algorithm mining, delivering 260Th/s at just 3640W with an industry-leading efficiency of 14 J/Th. Designed for Bitcoin (BTC) mining, this air-cooled unit balances power, noise, and reliability for both home and professional operations. With a compact design and global voltage support, it offers a future-proof solution for maximizing ROI in competitive mining environments.

Features & Benefits

Elite Efficiency: 14 J/Th rivals hydro-cooled units, reducing electricity costs by 20–30% vs. previous-gen miners.
Compact & Durable: Optimized footprint (197 × 365 × 292mm) fits home setups and farm racks.
Global Voltage Support: 220–277V input compatible with residential and industrial grids.
Enterprise-Ready: Ethernet connectivity for remote management and pool integration.
Robust Environmental Tolerance: Operates in 5–45°C temperatures and 5–95% humidity.

Why Choose the SealMiner A3 Air?

Bitdeer’s Engineering: Backed by a leader in blockchain infrastructure.
Future-Proof Design: Optimized for post-halving economics.
Plug-and-Play: Ethernet setup for seamless integration.

Target Audience: DIY miners, small farms, and investors seeking efficiency without hydro complexity.

Specifications of Bitdeer SealMiner A3 Air

Manufacturer	Bitdeer
Model	Sealminer A3 Air
Also known as	A3 Air Bitcoin Miner
Release	Sep 2025
Hashrate, Gh/s	260Th/s
Power on wall @25°C, Watt	3640W
Power efficiency on wall @25°C, J/Mh	14j/Th
Noise Level	75dB
Weight Net	15.5Kg
Gross Weight Including Packaging, kg	17.5Kg
Cooling	Fans (2)
Algorithm \| Cryptocurrency	SHA-256 \| BTC \| NMC \| BCH \| BSV \| PPC

Detailed Characteristics

Power Supply

Power supply AC Input voltage range V	220-277V AC
Power supply AC Input Frequency Range, Hz	47-63
Coolant pressure, bar	≤3.5
Power supply AC Input current, Amp	20

Hardware Configuration

Max Current	12A
Maximum Input Power, W	4,400
Power Connector Type	PA45-4P-S
Networking connection mode	RJ45 Ethernet 10/100M
Miner Size (LengthWidthHeight, w/o package),mm	197365292mm
Size with	308482423mm

Environment Requirements

Operation temperature,°C	5 – 45 °C
Storage temperature,°C	-20~70
Operation humidity(non-condensing) , RH	5~95%

Additional Information

丨Buying guide

1. Website prices do not include shipping, customs fees, and taxes, for some countries, we can provide low-price declaration as well as DDP service.
2. Product display is for reference only, the actual shipping version may change due to manufacturer updates.
3. X-ON MINING protects customer information, ensures the safety of customer transactions, and has cooperated with asicminervalue, asicminercompare, asicprices and other brands, with a high degree of reliability.

丨Shipping details

1. We will arrange the delivery of full payment orders according to the principle of payment order.
2. For pre-order orders, subject to the factory delivery date, X-ON MINING will inform the customer in time and follow up on the order at any time.
3. Need to buy additional power supply, chassis, water cooling air cooling system, please contact our salesman for detailed communication.
4. We provide verified video before delivery to ensure the normal operation of the machine.

丨Warranty

1. For different mining machines, Bitmain offers different warranty periods, which can be viewed in the repair guide.
2. In warranty time, the customer bears the postage to send back, Bitmain bears the postage to send back to the customer;
For machines outside the warranty, the customer needs to pay for maintenance and postage, machines paid on arrival will be rejected.
3. Do not assemble the faulty computing plate of multiple mining machines into one mining machine for maintenance.
4. Under normal circumstances, the maintenance cycle is about one week to complete the repair and return.
5. See the full list of terms at https://service.bitmain.com/support/terms

Weight	15.5 kg
Dimensions	19.7 × 36.5 × 29.2 cm
Manufacturer	Bitdeer
Hashrate, TH/s	260Th/s
Power	3640W

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Bitdeer SealMiner A3 Air 260Th/s 3640W Bitcoin Miner

Bitdeer SealMiner A3 Air

Algorithm

Hashrate

Power

Minable coins

BTC

BCH

BSV