With the growing popularity of Bitcoin and other cryptocurrencies, the race to unearth these digital treasures is becoming increasingly competitive. Cryptocurrency mining, which once started as a hobby for tech enthusiasts, has grown into a full-fledged industry with sophisticated hardware specifically designed for this purpose. This article examines two such powerful Bitcoin mining machines – the Avalon A1266 and the Avalon A1366, comparing their dimensions, weight, computing power, power consumption, energy efficiency (J/T), and cooling systems.

Avalon A1266: Unleashing the Power

The Avalon A1266, developed by Canaan, is a notable mining machine that has won the hearts of many crypto miners. It comes in a standard rack-mountable design measuring approximately 301mm x 195mm x 292mm. Weighing about 12.8 kg, it can easily fit into various mining environments, making it a convenient choice for many miners.
Under the hood, the A1266 boasts an impressive hash rate of 100Th/s±3% (Terahashes per second), indicating its robust computing power. This power, however, comes at a cost – the machine consumes about 3500W±5% of power, which users must factor into their operational expenses.
The energy efficiency, represented as J/T (Joules per Terahash), of the Avalon A1266 stands at approximately 35 J/T. This figure is a critical determinant of the machine’s profitability as it gauges the amount of energy the device needs to solve a Bitcoin block.
To manage the considerable heat generated by such power, the A1266 employs a dual-fan design, which effectively dissipates heat, ensuring that the machine operates within safe temperature levels.

Avalon A1366: Elevating the Game

As an upgrade to the A1266, the Avalon A1366 brings additional capabilities to the table. This unit maintains almost the same rack-mountable form factor, measuring 297mm x 192mm x 292mm, and weighs approximately 13 kg. However, the similarities end there.
The A1366 delivers a substantial increase in computing power with a hash rate of 130Th/s±3%, enabling users to solve Bitcoin blocks more rapidly. This enhanced power, however, requires about 3250W±5% of energy, necessitating a higher power supply.
In terms of energy efficiency, the A1366 is marginally more effective than its predecessor, with an average J/T value of about 25 J/T. This improvement means that the A1366 can provide more computational power while consuming slightly less energy per hash, boosting potential profitability.
Just like the A1266, the Avalon A1366 uses a dual-fan system for cooling. This design ensures effective heat dissipation, which is crucial for maintaining optimal performance and prolonging the machine’s lifespan.

Avalon A1346

Both the Avalon A1266 and A1366 represent significant strides in Bitcoin mining technology, offering users immense computational power. While they share similar physical characteristics and cooling systems, the key differentiating factor lies in their respective hash rates, power consumption, and energy efficiency levels.
It’s worth mentioning that while the Avalon A1366 outperforms the A1266 in terms of computing power and energy efficiency, it does come with increased power consumption. Therefore, users should consider the costs of power in their location when choosing between these machines.
Cryptocurrency mining has become a sophisticated industry requiring advanced hardware to stay competitive. Avalon, a prominent name in this arena, has been innovating new and efficient Bitcoin mining machines. The Avalon A1346 is one of their newest offerings, which takes performance and efficiency to a new level.
The Avalon A1346, a product of Canaan, is a Bitcoin mining machine that combines excellent computational power with energy efficiency. Weighing around 13 kg, the machine comes in a standard rack-mountable design with dimensions of 297mm x 195mm x 292mm.
The Avalon A1346 comes equipped with impressive computational power, boasting a hash rate of 110 Th/s±3% (Terahashes per second). Such a high hash rate provides the ability to solve Bitcoin blocks more rapidly and effectively. However, this computational force comes with an energy demand of approximately 3300W, contributing to the operational costs of running the machine.
When it comes to energy efficiency, denoted as J/T (Joules per Terahash), the A1346 shines with a rating of approximately 30 J/T. This figure represents the amount of energy the machine consumes to solve a Bitcoin block and plays a pivotal role in determining the profitability of mining operations.
Keeping the machine cool is a dual-fan system that ensures effective heat dissipation. The cooling system is paramount to maintain optimal performance and extend the life of the machine.

Avalon Series: A Comparative Analysis

For Bitcoin miners, efficiency is a paramount metric as it directly influences profitability: the more efficient the miner, the broader the profit margin.
The A1266 clocks in at a hash rate of 100 TH/s with an energy efficiency of 35 J/TH. The A1346 boasts a hash rate of 110 terahashes per second (TH/s) and operates at a power consumption of approximately 3300 watts. This translates to an energy efficiency of 30 joules per terahash (J/TH) for the A1346. On the other hand, the A1366, also a new introduction, impressively produces a hash rate of 130 TH/s, while only drawing around 3259 watts of power. This results in a commendable efficiency of 25 J/TH for the ASIC miner.
In comparison with its predecessor, the Avalon A1266, both the efficiency and hash rate of the newer models have significantly improved.

Avalon: Innovating Mining Technology

Avalon, owned by Canaan, is renowned for its state-of-the-art Bitcoin mining machines. Canaan was founded in 2013 and has since been a trailblazer in the development of blockchain servers and ASIC microprocessor solutions. AvalonMiner, Canaan’s hardware brand, is dedicated to developing top-tier miners with a focus on efficiency and making blockchain technology more accessible.
The latest offerings from Avalon include the A12 series, with models like the A1246, A1256, and A1266. These machines promise even more computational power and improved energy efficiency, embodying Avalon’s continuous commitment to progress in cryptocurrency mining technology.

The SAI’s TANKBOX Cooling System

SAI’s TANKBOX cooling system is an innovative solution that can significantly enhance the performance of mining machines like the Avalon series. This system uses a combination of advanced cooling techniques and materials to provide superior heat dissipation, enabling the machines to operate at optimal temperatures even under high computational loads.
Unlike the traditional air-cooling systems used in many mining machines, SAI’s TANKBOX uses liquid cooling, which is significantly more efficient in removing heat. By maintaining lower temperatures, TANKBOX can prolong the lifespan of mining machines, reduce noise and save energy, making it a worthwhile investment for miners.
Moreover, the TANKBOX system is designed to be easy to install and compatible with various mining machines, making it a versatile choice for different mining setups.


Avalon’s series of Bitcoin mining machines, including the A1346, offer powerful and efficient solutions for the rapidly evolving cryptocurrency mining industry. However, miners should consider factors such as the cost of power in their region and the potential benefits of enhancing their setups with solutions like SAI’s TANKBOX cooling system when selecting the right machine for their needs. These factors can significantly impact the overall profitability and sustainability of their mining operations.

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