roduct Overview

The Bitdeer SealMiner A2 Pro 260TH is a high-efficiency, air-cooled SHA-256 ASIC miner designed for serious Bitcoin mining operations. Delivering up to 260 TH/s hashrate at around 3,874W power draw, it offers an energy efficiency of approximately 14.9 J/TH in a compact, industrial-grade chassis.

Built on advanced 4 nm chip technology and engineered for 24/7 uptime, the A2 Pro 260TH is ideal for miners who want strong performance, modern efficiency and a straightforward air-cooled setup without moving to hydro or immersion systems.

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Key Features

• 260 TH/s SHA-256 hashrate
  High-density hashing performance for Bitcoin (BTC) and other SHA-256 coins (e.g. BCH, BSV), with typical real-world performance in the 255–260 TH/s range depending on operating mode and conditions.

• Approx. 3,874W power consumption
  Typical power draw is around 3.8–4.0 kW, delivering an efficiency of about 14.9 J/TH when correctly configured and cooled.

• Air-cooled, 4-fan design
  Four high-performance fans provide strong airflow across the hashboards, helping maintain stable operating temperatures and extending hardware lifespan when installed in a well-ventilated environment.

• Industrial-grade build quality
  Rugged metal chassis, integrated power supply and Ethernet (RJ45) connectivity make it suitable for both rack-style installations and standalone rigs in dedicated mining spaces.

• Next-generation efficiency
  Part of Bitdeer’s A2 Pro series, the 260TH air-cooled model is engineered to deliver modern efficiency for operators upgrading from older, less efficient SHA-256 miners.

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Technical Specifications – Bitdeer SealMiner A2 Pro 260TH

Mining

• Algorithm: SHA-256

• Supported coins: Bitcoin (BTC), Bitcoin Cash (BCH), Bitcoin SV (BSV) and other SHA-256-based cryptocurrencies

• Hashrate: Up to 260 TH/s (typical: 255–260 TH/s)

• Power consumption: ~3,874W (±5%, depending on mode and environment)

• Energy efficiency: ~14.9 J/TH

Power & Connectivity

• Input voltage: 200–240V AC (compatible with standard 230V / 50Hz supply)

• Frequency: 50–60 Hz

• Power supply: Integrated PSU (AC input)

• Fans: 4 × high-speed fans

• Interface: Ethernet (RJ45)

Physical

• Form factor: Air-cooled ASIC miner

• Dimensions (L × W × H): approx. 400 × 195 × 290 mm (without packaging)

• Net weight: approx. 15.5 kg

• Noise level: approx. 75 dB at full fan speed

Environmental

• Operating temperature: 5°C to 40°C (recommended)

• Storage temperature: −20°C to 70°C

• Operating humidity: 10% – 90% (non-condensing)

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Power, Cooling & Installation Notes

The SealMiner A2 Pro 260TH is a high-power device and should be installed with appropriate electrical and cooling design:

• Electrical considerations (South Africa context):

  • Allow for a continuous load of roughly 3.9 kW per unit.

  • Use a dedicated 230V circuit with correctly sized breakers and wiring.

  • Ensure plugs, cabling and distribution hardware are rated comfortably above the miner’s continuous draw.

  • For new circuits, work with a qualified electrician to ensure compliance with local standards.

• Cooling & placement:

  • Air-cooled ASICs expel a high volume of hot air; install in a well-ventilated room, garage, mining room or container, not in living spaces.

  • At around 75 dB, noise levels are similar to a loud vacuum cleaner and are not suitable for bedrooms or offices.

  • Plan for airflow: cold air intake and hot air exhaust should not mix; consider ducting or extraction fans for multi-miner setups.

Correct site planning helps maintain safe temperatures, stable performance and longer hardware lifespan.

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Ideal Use Cases

• Professional or semi-pro Bitcoin miners looking to add efficient SHA-256 capacity.

• Mining farms or containers that prefer air-cooled hardware over hydro or immersion systems.

• Operators upgrading from older-generation ASICs to improve hashrate per kilowatt and reduce overall fleet power consumption.

The A2 Pro 260TH is particularly well-suited to setups that already have good airflow and electrical infrastructure for 3–5 kW devices.

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What’s Included

• 1 × Bitdeer SealMiner A2 Pro 260TH air-cooled miner

• Integrated Bitdeer power supply (AC input)

Note: Power cables may not be included by some suppliers. Ensure you have appropriately rated cables and plugs that match your local socket standard and electrical design.