-
Power
5569W
-
Hashrate
215.00 TH/s
-
Efficiency
25.9 J/T
-
Algorithm
SHA-256
Bitmain Antminer S21 Imm Bitcoin Miner 300TH/S | BT-MINERS
US$6,600.00
Top Hashrate : Up to 100% better than the previous generation
High Stability : Supports 24/7 continuous operation
Warranty : Come with 6-month factory warranty.
S21 Imm Profitability Calculate
Daily Earning
ROI
Electricity
Electricity ratio
Net Profit
Miner Profitability History
Description
Antminer S21 Imm 300T Description
Model Antminer S21 Imm from Bitmain mining SHA-256 algorithm with a maximum hashrate of 300Th/s for a power consumption of 5569W.
*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*
NEM: 239T, 3,824W, 16J/
HEM: 301T, 5,569W, 18.5J/
For Brand NEW Miner, Bitmain Provides 365 days of factory warranty.
Technical Specifications
| Product Glance | Value |
|---|---|
| Model | S21 lmm. |
| Crypto algorithm/coins | SHA256| BTC/BCH/BSV |
| Typical hashrate | 215.00 TH/s/300TH/s |
| Power on wall @35℃, Watt | 5569W |
| Power efficiency on wall@35℃ | 18.5J/TH |
| 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 | 293*236*364 |
| Server size(length*width*height, with package), mm | 570*316*430 |
| Net weight, kg | 17.15 |
| Gross weight, kg | 20.45 |
| Environment Requirements | Value |
|---|---|
| Inlet coolant temperature, °C | 30~55 |
| 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.
Minable pools for
Partners
Antminer S21 Imm Description
The Bitmain Antminer S21 IMM 300TH represents one of the highest-output SHA-256 miners currently available in the industrial mining segment. With a powerful 300 TH/s hashrate, this immersion-cooled system is engineered for Bitcoin mining farms that demand maximum throughput, long-term reliability and strong thermal performance. Immersion cooling provides a major advantage by minimizing overheating risks, extending hardware lifespan and maintaining consistent hashrate during continuous 24/7 operation.
Its industrial-grade design requires a stable, high-capacity power supply and a proper immersion tank setup with circulating coolant. Because of its power and environmental requirements, the S21 IMM 300TH is not suitable for home mining or small setups. Instead, it performs best in professional mining facilities or datacenter-level environments with robust electrical wiring, heat exchange systems and controlled airflow.
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 Antminer S21 IMM 300T
Antminer S21 Hyd provides 335 TH/s with stable hydro cooling and predictable power performance, ideal for industrial water-cooled farms.
Antminer S21 IMM 300T delivers 300 TH/s with immersion cooling for maximum heat stability and high-density deployment.
Choose Hyd for reliability; choose IMM for maximum output and scalability.
| Field | Antminer S21 Hyd | Antminer S21 IMM 300T |
|---|---|---|
| Algorithm | SHA-256 for BTC, BCH, BSV | SHA-256 for BTC, BCH, BSV |
| Hashrate | 335 TH/s | 300 TH/s |
| Cooling Method | Hydro cooling (water circulation) | Immersion cooling (oil or coolant bath) |
| Power Consumption | Around 5360 W | Varies based on tank design; typically industrial-level |
| Energy Efficiency | Around 16 J/TH | Can achieve lower J/TH depending on immersion setup |
| Voltage Requirement | 380–415V AC, 3-phase | 380–415V AC, 3-phase |
| Thermal Stability | Very stable under hydro cooling | Extremely stable under immersion with uniform heat dissipation |
| Best For | Industrial farms using water-cooling systems | High-density immersion farms seeking maximum output |
| Advantages | Proven stable performance, predictable power and cooling needs | High hash potential, strong long-term stability, excellent heat control |
| Considerations | Requires plumbing and water coolant maintenance | Requires immersion tank, coolant, and more complex infrastructure |
-
Processing&Shipping Time
-
Payment Policies
-
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.
Want to find more Similar Miners?
FAQs
-
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.
-
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.
-
What is the hashrate of the Antminer S21 IMM?
The S21 IMM delivers 300 TH/s under immersion-cooled operation.
-
What cooling system does it use?
It uses immersion cooling, requiring a coolant bath and circulation system.
-
Is the 300T version suitable for home mining?
No. It is designed strictly for industrial-grade mining farms.
-
What algorithm does it support?
SHA-256 for Bitcoin, Bitcoin Cash, Bitcoin SV and similar networks.
-
What power requirements does it have?
It requires a strong industrial power supply capable of supporting high wattage safely.
-
Does immersion cooling improve performance?
Yes. It stabilizes temperatures, reduces throttling and increases hardware lifespan.
-
Can it run 24/7 continuously?
Yes, when installed in a proper immersion system with stable power.
-
What coins can be mined?
BTC, BCH, BSV and all SHA-256 compatible assets.
-
Does BT-MINERS test the unit before shipping?
Yes. Each miner is tested, verified and packaged securely.
-
Who is this miner best for?
Large mining farms and professional operations requiring maximum hashrate output.
