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Power
4785W
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Hashrate
319.00 TH/s
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Efficiency
15 J/T
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Algorithm
SHA-256
Bitmain Antminer S21+ Hyd Bitcoin Miner 319TH/s | BT-MINERS
from US$2,800.00
Top Hashrate : Up to 100% better than the previous generation
High Stability : Supports 24/7 continuous operation
US Stock : Ships immediately from local US warehouse
Warranty : Come with 6-month factory warranty.
S21+ Hyd Profitability Calculate
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Description
Antminer S21+ Hyd Description
Model Antminer S21+ Hyd (319Th) from Bitmain mining SHA-256 algorithm with a maximum hashrate of 319Th/s for a power consumption of 4785W.
*This unit requires higher voltage set ups than typical miners, which may cause it to be unoperational in most homes and mining facilities. Please consult with our sales rep before placing order*
For Brand NEW Miner, Bitmain Provides 365 days of factory warranty.
Technical Specifications
| Product Glance | Value |
|---|---|
| Model | S21+ Hyd. |
| Crypto algorithm/coins | SHA256|BTC/BCH/BSV |
| Typical hashrate | 319.00 TH/s |
| Power on wall @35℃, Watt | 4785W |
| Power efficiency on wall@35℃ | 15J/T |
| Detailed Characteristics | Value |
|---|---|
| Power Supply | |
| Phase | 3 |
| Input voltage, Volt | 380~415 |
| Input frequency range, Hz | 50~60 |
| Input max current, Amp | 12 |
| Hardware Configuration | |
| Networking connection mode | RJ45 Ethernet 10/100M |
| Server size(length*width*height, w/o package), mm | 339*173*207 |
| Server size(length*width*height, with package), mm | 570*316*430 |
| Net weight, kg | 14.5 |
| Gross weight, kg | 16.4 |
| Environment Requirements | Value |
|---|---|
| Inlet coolant temperature, °C | 20~50 |
| Coolant flow, L/min | 8.0~10.0 |
| Coolant pressure, bar | ≤3.5 |
| Working coolant | Antifreeze/ Pure water/Deionized water |
| Coolant pH value | Antifreeze: 7.0~9.0 Pure water: 6.5~7.5 Deionized water：8.5~9.5 |
| Diameter of coolant pipe connector, mm | OD10 |
| Storage temperature, °C | -20~70 |
| Operation humidity(non-condensing), RH | 10~90% |
| Operation temperature,°C | -20~45 |
| Operation altitude, m | ≤2000 |
| What's in the Box | Value |
|---|---|
| Original factory mining machinery | ✓ |
| Power supply | ✓ |
| Shockproof packaging | ✓ |
Notes
(1) The hashrate value, power on wall, and power efficiency on wall are all typical values. The actual hashrate value fluctuates by ±3%, and the actual power on wall and power efficiency on wall fluctuate by ±5%.
(2) Caution: Wrong input voltage may cause server damaged.
(3) The noise is loudest when the fan is under maximum RPM(rotation per minute).
(4) When the server is used at an altitude from 900m to 2000m, the highest operating temperature decreases by 1℃ for every increase of 300m.
Estimate time
Please select your preferred product batch – Available Now (In Stock) for immediate shipment or Month Batch for delivery within your chosen timeframe. If no selection is needed, the product is in stock and ready to ship. If you haven’t received your miner after the estimated time, please contact us at store@bt-miners.com, and our team will assist you promptly.
Shipping
All used miners will undergo testing by our certified technicians before shipping, which requires 3-5 business days. New miners will be shipped from our Shenzhen or Hong Kong warehouse, with international delivery taking approximately 5-10 business days via DHL. Once your order is shipped, you will receive a confirmation email with a tracking number. Shipping fees are calculated based on product type and weight, varying by region.
Returning policy
All sales are final and non-refundable after shipment, but we offer repair and replacement services if there are technical issues with your miner.
It supports Ethernet connection. You just need to connect the power supply and network. You can download the batch group – control scanning software on the official website or through relevant channels to obtain the miner’s IP address. Then, enter the IP in the browser and log in to the miner management interface with the default initial username “root” and password “root” for configuration. If the device cannot be scanned, you can also log in to the background through the router’s IP address to configure it
Please visit this blog, where there are detailed introductions.
Minable pools for
Partners
S21+ Hyd Description
The Antminer S21 Hyd brings together leading-edge performance and industrial-grade build quality for SHA-256 Bitcoin mining. With a strong 319 TH/s hashrate and a 4785 W power draw, this miner is designed for operators seeking high BTC throughput without compromising on stability. The integrated hydro-cooling design significantly improves thermal management compared with air-cooled rigs — reducing heat stress, enabling denser rack deployment, and maintaining stable hash output under continuous 24/7 operation.
Applicants should run the S21 Hyd in facilities with proper coolant circulation, three-phase power supply, and controlled environments. With rack-mount design and standard AC input, integration into existing mining farms is straightforward when infrastructure is prepared. For miners scaling operations or building new farms, the S21 Hyd offers an excellent balance between raw hash rate and manageable cooling demands.
Bitmain’s Legacy and the Antminer Series
Bitmain has long been recognized as one of the most influential companies in the global cryptocurrency mining industry. Established in 2013, the company quickly became a pioneer in the development of high-performance ASIC mining hardware. Over the years, Bitmain’s engineering breakthroughs have shaped the evolution of blockchain mining, helping miners achieve higher profitability, lower energy consumption, and unprecedented operational efficiency.
At the core of Bitmain’s success is its legendary Antminer series—a lineup of ASIC miners covering major algorithms such as SHA-256, Equihash, Scrypt, Kadena, and more. Antminers are known worldwide for their stability, durability, and competitive edge in mining performance. The product line has produced some of the most iconic models in mining history, including the Antminer S9, S19 Pro, L7, Z15, and the latest next-generation units such as the S21 and Z15 Pro.
Each Antminer generation not only improves hashing efficiency but also introduces advanced chip architecture, enhanced cooling systems, and optimized firmware designed for 24/7 operation. The series has become the global standard for both home miners and industrial-scale mining farms, offering unmatched reliability and long-term performance.
Today, Bitmain continues to push the boundaries of ASIC technology, developing miners that deliver higher output with lower power consumption. The company’s commitment to quality and innovation has solidified the Antminer brand as the benchmark of professional cryptocurrency mining—trusted by millions of miners across the world.
Antminer S21 Hyd vs S21 Pro
Antminer S21 Hyd offers higher hashrate and stronger thermal stability through hydro cooling, making it ideal for large industrial mining farms. Antminer S21 Pro delivers simpler air-cooled operation with lower power requirements. Choose Hyd for maximum output and scalability, choose Pro for easier deployment and balanced efficiency.
| Field | S21 Hyd | S21 Pro |
|---|---|---|
| Algorithm | SHA-256 (BTC / BCH / BSV) | SHA-256 (BTC / BCH / BSV) |
| Typical Hashrate | Up to ~335 TH/s (or close, depending cooling setup) | ~234–234 TH/s (standard spec) |
| Cooling Method | Hydro-cooling (liquid / water-coolant system) | Air-cooled (dual-fan standard ASIC cooling) |
| Power Consumption | Higher due to hydro setup + high hash → needs industrial-grade power & coolant circulation | ~3510 W, suitable for standard power supply |
| Energy Efficiency (Hash per Watt) | Higher potential: liquid cooling enables stable high load and better thermal control, improving long-term efficiency per TH | Balanced efficiency with standard power draw, simpler infrastructure needs |
| Infrastructure Requirement | Requires coolant tank or water-cooling system, stable multi-phase power, proper coolant circulation & maintenance | Standard AC power input, basic ventilation, minimal extra infrastructure |
| Best For / Use Case | Large-scale / industrial mining farms, high-density rack deployment, long-term mining operations | Small to medium farms or setups needing stable performance with simpler deployment |
| Advantages | Very high hashrate and throughput, excellent thermal stability under heavy load, suitable for dense mining racks or farms | Easier to deploy, lower complexity, lower upfront infrastructure and maintenance needs |
| Considerations / Drawbacks | Requires substantial cooling infrastructure and stable power; higher setup and maintenance cost | Lower maximum hashrate compared to hydro-cooled variant; standard air cooling may limit density in large farms |
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Processing&Shipping Time
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Payment Policies
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Taxes and Custom Duties
Processing&Shipping Time
Payment Policies
Taxes and Custom Duties
All shipments will go out by UPS or DHL.
Please contact us if any documentations are requested by customs.
Our product are excluded of all value added taxes and customs duties sold by BT-Miners. You will be solely responsible for paying any outstanding taxes and duties as per your country’s law and customs. Client will be responsible for additional shipping charges if items are returned to sender.
Contact us at store@bt-miners.com or 813-820-0668 if you have any questions.
All products on our website are priced in US Dollars.
Payment made by credit or debit card may subject to card processing fees.
We can accept payment by credit/ debit card, wire transfer, ACH transfer (through our online portal), and crypto.
*Machine prices will fluctuate according to the current market price.*
All orders will be dispatch in the order which they were received. Pre-orders typically ships at the end of the month of the batch but may delay if manufacturer delays release/shipment. In stock machines ship in 3-7 business days from our warehouse in China. Bulk orders may release a few days later.
We always try to ship as soon as we can via USP or DHL after full payment has been received and verified.
International shipping usually takes about 5-8 business days. Due to changing regulations, we will not be able to cover duty tax for all orders entering USA. Deliveries to other countries may require customers to clear customs and pay duty tax. Please notify us right away if documents are requested by customs as improper filing may result in higher fees and/or delays.
All sales are final and non-refundable on any terms.
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FAQs
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What Is The Lifespan Of This Mining Machine?
The lifespan of mining hardware is influenced by usage intensity, environmental factors like temperature, humidity, and dust. Proper maintenance and optimal conditions can significantly extend its longevity.
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How Does Electricity Cost Impact Profitability?
Electricity costs play a crucial role in mining profitability, as high rates can quickly offset profit. Therefore, it is vital to access local electricity costs to determine if mining is viable. With high electricity costs and high liquidity of digital assets, investing in an energy-efficient miner becomes even more important.
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What algorithm does Antminer S21 Hyd use?
It uses SHA-256, suitable for mining Bitcoin (BTC) and other SHA-256 coins.
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What is the hashrate of S21 Hyd 319 TH?
The miner provides a hashrate of 319 TH/s under standard hydro-cooled operation.
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What kind of cooling system does it require?
It requires a hydro-cooling (liquid / water-coolant) system with proper circulation.
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What power supply does S21 Hyd need?
Industrial-grade power input (typically 380–415 V three-phase), suitable for mining farms.
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Is S21 Hyd suitable for home mining?
No — due to power draw and cooling infrastructure requirements, it is intended for professional mining farms.
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Can S21 Hyd run 24/7 continuously?
Yes, with proper hydro cooling and stable power supply, it supports continuous heavy-load mining.
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Which coins can be mined with it?
Bitcoin (BTC), Bitcoin Cash (BCH), Bitcoin SV (BSV), and any SHA-256 compatible coin.
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Is hydro cooling more efficient than air cooling?
Yes — hydro cooling provides better heat dissipation, lower operating temperature, and supports denser rack deployment.
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Does BT-MINERS test miners before shipping?
Yes — every unit is tested, securely packaged, and shipped worldwide.
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Who should consider buying S21 Hyd 319 TH?
Mining farms or industrial operators seeking high throughput, stable hash output, and efficient thermal management.
