Containers, sometimes called ASIC mining containers or modular mining units, exist because the expensive, hard part of mining at scale is not the miners. It is the electricity and the infrastructure to run them. As one container guide puts it bluntly:
“Hardware is a one-time cost. Electricity is forever.”
That single idea explains the whole product category. A container lets you put hashrate exactly where the power is cheap, fast. This guide is the plain-language overview of what they are, what is inside, how they are cooled, and what they cost, with links to go deeper on each.
What a mining container actually is

What is inside: the six systems

How containers are cooled

Which to pick is its own decision, covered in the air vs hydro vs immersion guide, and the broader case for liquid cooling is in our immersion cooling explainer.
Sizes and capacity
- 20-foot units are compact and mobile, typically sub-1 MW, good for smaller or portable deployments. The Antbox N5 is a 20-foot example at 658 kW.
- 40-foot units hold roughly 180 to 250 miners depending on form factor and cooling, and scale into the multi-megawatt range for industrial sites.
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What a container costs
The number that decides everything. A container operation at $0.07 per kWh versus $0.15 is not twice as profitable. It is the difference between a business and a loss. Price your power before you price anything else.
We break the full budget down, container by container and line by line, in the mining container cost guide, and you can see how the same machines perform on cheap hosted power in the hosting comparison.
Who containers are for
- Scaling operators who want to add megawatts quickly without construction.
- Stranded-power sites like flare gas, remote hydro, or curtailed renewables, where a mobile container can be trucked to the energy.
- Anyone chasing the cheapest electricity, since a container can deploy in a low-cost mining-friendly state or be hosted on industrial power rather than fight a home meter.
Frequently asked questions
It is a shipping container converted into a complete, plug-and-play mining facility. Inside are the ASIC miners, power distribution, a cooling system, ventilation, and monitoring and security, all pre-engineered together. You connect power and internet on site and it runs, which is how operators add hashrate without constructing a building.
How much does a Bitcoin mining container cost?
It varies widely by capacity and cooling type, and the container is only part of the total. You also budget for a transformer, the miners, site work, and shipping. The cost that dominates over time is electricity, so the power rate matters far more than the container price. See our dedicated container cost guide for the full breakdown.
How many miners fit in a mining container?
A 40-foot container typically holds roughly 180 to 250 ASIC miners, depending on the machine form factor and the cooling type. Hydro and immersion units fit more in the same space than air-cooled ones because they do not need airflow gaps between machines. A 20-foot unit holds proportionally fewer.
How much power does a mining container use?
Capacity is rated in kilowatts or megawatts. Smaller 20-foot units run around 650 kW, while large 40-foot industrial containers reach into the multi-megawatt range. The container must connect to a transformer, not a normal outlet, because of the power involved.
What are the different types of mining containers?
They are mainly grouped by cooling: air-cooled (forced-air fans, simplest and cheapest), hydro-cooled (a liquid loop and cooling tower, denser and quieter), and immersion (miners submerged in dielectric fluid, best thermals and lowest noise, highest cost). Footprint also varies between 20-foot and 40-foot units.
Can you build your own Bitcoin mining container?
You can, but it is a serious electrical and engineering project involving power distribution, cooling design, ventilation, and safety systems. Most operators buy a purpose-built unit because it arrives pre-engineered and ready to energize. We cover the considerations in our how-to-build guide for those who want to attempt it.
Air-cooled or hydro-cooled, which is better?
Neither is universally better. Air is simpler and cheaper to deploy and suits dry climates and smaller sites. Hydro packs miners more densely, runs quieter, and suits high-density operations with water access, but costs more and is more complex. The right choice depends on your site, climate, and scale.
Where do mining containers get deployed?
Wherever electricity is cheap and abundant: industrial sites, energy-producing regions, and stranded-power locations like flare gas fields, remote hydro, or curtailed renewable plants. Their portability is the point, letting operators bring the hashrate to the power instead of the other way around.
The bottom line
The rest of this cluster goes deeper on each decision: the cooling types, the costs, the sizes, the top models, and the Antbox versus Antspace question. But the starting point is always the same: find the cheap power first, then bring the container to it.

