10 Best Antminer 2026 in the United States

The BITMAIN Antminer S21 XP 270T is designed for serious cryptocurrency miners looking for high performance. It offers a strong hash rate of 270 terahashes per second (TH/s), which means it can process a large number of Bitcoin and similar SHA256-based currency transactions quickly. However, this power comes with significant electricity use—running at 3645 watts—which is quite high and will impact your electricity costs.

The machine uses an air-cooling system, a common and generally effective method, but it may produce considerable noise during operation, which is typical for high-powered miners and something to consider if space and noise are concerns. The build quality appears solid with a sturdy form factor weighing about 18.7 kilograms, indicating durability for long-term use.

Returns are very limited unless there's a product defect, and local taxes or import duties will be your responsibility. This miner is best suited for those who have experience with mining setups and can manage the power demands and noise, aiming for high-efficiency mining gains.

The Antminer S21+ 235T is a high-powered Bitcoin mining machine designed to offer strong performance with a hash rate of 235 terahashes per second (TH/s). It uses 3878 watts of power, which translates to an energy efficiency of about 16.5 watts per terahash, meaning it provides good mining output while managing electricity costs fairly well. This miner includes an air-cooling system to keep the device running at optimal temperature, but as with most powerful miners, it produces a significant amount of noise, so it may not be ideal for quiet environments or residential use.

It operates on an input voltage between 220V and 277V, so proper power supply is essential to avoid damage. The machine’s build is sturdy and comes with a power supply unit (PSU) and power cords, making it ready for setup out of the box. Connectivity details are standard, supporting PCI Express configuration, suitable for most mining setups.

This miner is marketed as more powerful and cost-effective compared to some predecessors, but buyers should be aware of a substantial 40% restocking fee if returned within 30 days, which encourages careful consideration before purchase. This device is suited for serious Bitcoin miners looking for high performance and good energy efficiency, but it requires the right electrical setup and tolerance for noise.

The Bitmain Antminer S19 Pro+ HYD offers exceptional performance for cryptocurrency mining. With a high hash rate of 198 TH/s, it is optimized for BTC and other cryptocurrencies, promising efficient and profitable mining operations. The advanced ASIC technology used in this model ensures superior performance and reliability, making it a solid choice for serious miners aiming for high returns on their investments (ROI).

One of its standout features is the efficient heat dissipation system utilizing water cooling, which keeps the device at optimal temperatures, thereby enhancing its longevity and maintaining consistent performance. This is particularly important for long-term mining sessions where overheating can reduce efficiency and damage the equipment over time. The device also comes with a user-friendly interface that simplifies the setup process, making it accessible even for beginners in cryptocurrency mining.

However, there are some points to consider. The Antminer S19 Pro+ HYD has a high power consumption of 5445 watts, which means it will significantly increase your electricity costs. Additionally, the noise level of such powerful miners can be quite high, potentially making them unsuitable for residential areas without proper soundproofing. Despite these drawbacks, the trusted Bitmain brand adds assurance of quality, support, and continuous advancements in mining technology. This miner is best suited for those with experience and resources to handle its power and cooling requirements, as well as those who are serious about maximizing their mining efficiency and profitability.