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Bitmain Antminer S21 XP Hydro – The Most Powerful Hydro-Cooled Solution for Efficient Bitcoin Mining at MillionMiner!
MillionMiner proudly presents the Bitmain Antminer S21 XP Hydro, Bitmain's latest innovation featuring hydro-cooled technology and an impressive hash rate (SHA-256) of 473 TH/s at only 5676 W power consumption.
The new S21 XP Hydro models are ideal for profitable mining after the latest Bitcoin halving, setting new standards in efficiency and performance.
Why the Antminer S21 XP Hydro?
Thanks to its specialized water-cooling technology, the miner remains stable and efficient even under high load, reducing wear and extending its lifespan. For hydro-mining enthusiasts, MillionMiner also offers all the necessary hydro-mining components and expert advice to optimize your miner's operation. Additionally, hydro miners are much quieter than air-cooled Bitcoin miners.
To operate this miner, you will need at least a 12KW Lianli Radiator, which we also provide. For more extensive operations with 4 or 10 devices (in parallel), larger components like the Bitmain AntRack V1 Hydro-Cooling Mining Rack 24kW (for 4 devices) or even an entire Hydro Mining Container for up to 240 devices are ideal.
We offer free consultations for your planned hydro-mining project and will assist you in bringing your project to life. Simply fill out the form below, and a representative will contact you shortly.
The new S21 XP Hydro models are ideal for profitable mining after the latest Bitcoin halving, setting new standards in efficiency and performance.
Why the Antminer S21 XP Hydro?
Thanks to its specialized water-cooling technology, the miner remains stable and efficient even under high load, reducing wear and extending its lifespan. For hydro-mining enthusiasts, MillionMiner also offers all the necessary hydro-mining components and expert advice to optimize your miner's operation. Additionally, hydro miners are much quieter than air-cooled Bitcoin miners.
To operate this miner, you will need at least a 12KW Lianli Radiator, which we also provide. For more extensive operations with 4 or 10 devices (in parallel), larger components like the Bitmain AntRack V1 Hydro-Cooling Mining Rack 24kW (for 4 devices) or even an entire Hydro Mining Container for up to 240 devices are ideal.
We offer free consultations for your planned hydro-mining project and will assist you in bringing your project to life. Simply fill out the form below, and a representative will contact you shortly.
Hosting Solutions at MillionMiner
No infrastructure? No problem! At MillionMiner, you can host your ASIC miners (currently we do not offer hosting for hydro miners) directly in our state-of-the-art hosting centers in Dubai and the USA. With rates starting as low as 6 cents per kWh, we provide a secure, cost-effective environment for your mining project without the need to worry about technical details or maintenance.
Technical Details:
| Manufacturer | Bitmain |
|---|---|
| Model | Antminer S21 XP Hydro |
| Hashrate | 473 TH/s |
| Power Consumption | 5676 W |
| Cooling | Water Cooling |
| Dimensions | 410 x 170 x 209 mm |
| Weight | 17.5 kg |
| Operating Noise | 50 dB |
| Operating Temperature | 5–40 °C |
| Humidity | 5–95 % |
| Interface | Ethernet |
| Release Date | August 2024 |
| Warranty | 6 months manufacturer warranty |
Condition: New with 6 months manufacturer warranty
Delivery time: 8–10 days
Delivery time: 8–10 days
All miners are supplied with the appropriate power supply.
Payment methods: SEPA bank transfer, cryptocurrencies (BTC, ETH, USDT)
With our years of experience, you don't need to worry about customs clearance. MillionMiner takes care of all customs procedures for you (DDP).
Free Consultation and Comprehensive Support
Benefit from our extensive expertise in hydro mining! We offer free consultations on choosing the right cooling technology and optimizing your miner's performance. Contact us by phone at +49 176 777 888 33 or schedule an appointment in our office – our team is here for you.
Bitcoin (BTC)
The original cryptocurrency and digital gold standard. Bitcoin pioneered blockchain technology and remains the most secure and widely adopted cryptocurrency. It operates on a proof-of-work consensus mechanism and has a fixed supply of 21 million coins. Bitcoin serves as a store of value and digital currency for peer-to-peer transactions worldwide.
Bitcoin Cash (BCH)
A Bitcoin fork created in 2017 to improve transaction speed and reduce fees. Bitcoin Cash increased the block size limit to allow more transactions per block, making it more suitable for everyday payments. It maintains Bitcoin's core principles while focusing on scalability and lower transaction costs. BCH aims to be digital cash for the world.
Fractal Bitcoin (FB)
Fractal Bitcoin is a cryptocurrency that enhances the scalability of the Bitcoin network through a recursive sidechain architecture. By utilizing the Bitcoin Core code, it creates multiple layers on top of the Bitcoin blockchain, allowing for significantly higher transaction throughput and faster confirmation times of 30 seconds or less. As a merge-mined cryptocurrency, Fractal Bitcoin leverages the same mining process as Bitcoin, ensuring robust security and decentralization. Its goal is to facilitate the development of large-scale applications directly on the Bitcoin blockchain, thereby expanding its utility and potential for mass adoption.
Bitcoin SV (BSV)
Bitcoin Satoshi Vision emerged from a Bitcoin Cash fork, aiming to restore Bitcoin's original protocol. BSV features massive block sizes to enable high transaction throughput and low fees. It focuses on enterprise applications, data storage, and smart contracts while maintaining Bitcoin's proof-of-work security model. BSV positions itself as the true vision of Satoshi Nakamoto.
ACOIN
A SHA-256 based cryptocurrency that focuses on accessibility and community-driven development. ACOIN utilizes Bitcoin's proven mining algorithm while implementing features designed for everyday use. The project emphasizes fair distribution, sustainable mining practices, and building a strong community ecosystem. It aims to bridge traditional finance with blockchain technology.
Curecoin (CURE)
A unique cryptocurrency that combines blockchain mining with protein folding research for medical breakthroughs. Curecoin rewards miners for contributing computational power to Stanford University's Folding@home project, which helps research diseases like cancer and Alzheimer's. This innovative approach makes mining productive for humanity while maintaining network security through traditional SHA-256 mining.
eMark (DEM)
A German-originated cryptocurrency designed for practical digital payments and micropayments. eMark features fast transaction confirmations and low fees, making it suitable for everyday commerce. The project focuses on European markets and aims to provide a stable, reliable digital currency alternative. DEM emphasizes simplicity and user-friendly adoption for mainstream use.
Joulecoin (XJO)
Joulecoin (XJO) is a cryptocurrency that features quick confirmations and transaction comments, utilizing a customized version of Bitcoin's core technology with lowered block time for higher performance and a long proof-of-work period. It does not focus on energy efficiency or renewable energy usage.
Peercoin (PPC)
The first cryptocurrency to implement proof-of-stake consensus alongside proof-of-work. Peercoin pioneered the concept of minting coins through stake ownership, reducing energy consumption compared to pure mining systems. It features a unique approach to network security and coin distribution, combining the best of both consensus mechanisms. PPC is designed to be more sustainable and energy-efficient long-term.
Terracoin (TRC)
A Bitcoin-based cryptocurrency designed for stability and long-term value preservation. Terracoin implements enhanced security features and focuses on being a reliable store of value and medium of exchange. The project emphasizes steady development, community governance, and practical applications for digital commerce. TRC aims to provide a dependable alternative to traditional fiat currencies.
Unbreakable (UNB)
A security-focused cryptocurrency that emphasizes robust network protection and resistance to attacks. Unbreakable implements advanced cryptographic techniques and multiple security layers to ensure transaction integrity and network stability. The project prioritizes building an impenetrable blockchain infrastructure that can withstand various forms of digital threats. UNB represents the next generation of ultra-secure digital currencies.
Don't forget to check out the Hydro Bitcoin Mining Accessories!
Here at MillionMiner, we are proud to be in partnership with Lianli,
a leading Hydro Cooling Manufacturer from China, that is specialized in the field of Asic Cooling.
We sell a wide range of related accessories, from hydro cooling radiators (for single miners)
to a full Hydro Cooling Cabinets, that can run up to 10 powerful bitcoin hydro miners.
If you have any questions, regarding Hydro Bitcoin Mining, don't hesitate to contact us!

Hydro-Cooled Power Supply:
Utilizing a new hydro-cooled power supply with more than a 95%
conversion efficiency achieving energy savings and environmental protection.
Waterproof and dustproof design:
High-grade waterproof and dustproof components are incorporated to safeguard the miner,
which creates an ideal working environment and ensures long-term mining operations
Further Noise Reduction, Silent Operatioins:
The entire miner operates with no fans.
It generates no noise, only the sound of the water flowing

To read more about Hydro Cooling Solutions, please visit our Hydro Mining Section,
where we explain everything you need to know about Hydro Bitcoin Mining: CLICK HERE
Here at MillionMiner, we are proud to be in partnership with Lianli,
a leading Hydro Cooling Manufacturer from China, that is specialized in the field of Asic Cooling.
We sell a wide range of related accessories, from hydro cooling radiators (for single miners)
to a full Hydro Cooling Cabinets, that can run up to 10 powerful bitcoin hydro miners.
If you have any questions, regarding Hydro Bitcoin Mining, don't hesitate to contact us!

Hydro-Cooled Power Supply:
Utilizing a new hydro-cooled power supply with more than a 95%
conversion efficiency achieving energy savings and environmental protection.
Waterproof and dustproof design:
High-grade waterproof and dustproof components are incorporated to safeguard the miner,
which creates an ideal working environment and ensures long-term mining operations
Further Noise Reduction, Silent Operatioins:
The entire miner operates with no fans.
It generates no noise, only the sound of the water flowing

To read more about Hydro Cooling Solutions, please visit our Hydro Mining Section,
where we explain everything you need to know about Hydro Bitcoin Mining: CLICK HERE