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Power
3564W
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Hashrate
216.00 TH/s
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Efficiency
16.5 J/T
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Algorithm
SHA-256
Bitmain Antminer S21+Plus Bitcoin Miner
from US$1,600.00
Top Hashrate : Up to 100% better than the previous generation
High Stability : Supports 24/7 continuous operation
Warranty : Come with 12-month factory warranty.
S21+Plus Profitability Calculate
Daily Earning
ROI
Electricity
Electricity ratio
Net Profit
Miner Profitability History
Model Antminer S21+Plus from Bitmain mining SHA-256 algorithm with a typical hashrate of 216Th/s for a power consumption of 3564W.
Technical Specifications
| Product Glance | Value |
|---|---|
| Model | S21+Plus |
| Crypto algorithm/coins | SHA-256 | BTC/FB/NMC |
| Typical hashrate | 216 TH/s |
| Power on wall @35℃, Watt | 3564W |
| Power efficiency on wall@35℃ | 16.5 J/TH |
| Detailed Characteristics | Value |
|---|---|
| Power Supply | |
| Phase | 1 |
| Input voltage, Volt | 220~277 |
| Input frequency range, Hz | 50~60 |
| Input max current, Amp | 20 |
| Hardware Configuration | |
| Networking connection mode | RJ45 Ethernet 10/100M |
| Server size(length*width*height, w/o package), mm | 450*219*293 |
| Server size(length*width*height, with package), mm | 450*219*293 |
| Net weight, kg | 21.5 |
| Gross weight, kg | 21.5 |
| Noise@30℃, dBA | 21.5 |
| Environment Requirements | Value |
|---|---|
| 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 | ✓ |
| Power cord | ✓ |
| 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.
Antminer S21+Plus Description
The Bitmain Antminer S21+Plus, also known as the Antminer S21+, is an industrial air-cooled ASIC miner designed for the SHA-256 algorithm. It can be used to mine Bitcoin (BTC), Bitcoin Cash (BCH), Bitcoin SV (BSV), Fractal Bitcoin (FB), Namecoin (NMC), and other compatible SHA-256 cryptocurrencies.
Available hashrate options may include 216 TH/s, 225 TH/s, and 235 TH/s, depending on current stock and batch availability. The 216 TH/s configuration operates at approximately 3,564W with an energy efficiency of approximately 16.5 J/TH.
The S21+Plus is designed for professional mining farms, hosting facilities, warehouses, data centers, and other locations equipped with suitable electrical, ventilation, and heat-removal infrastructure. It requires a stable 220–277V single-phase electrical supply, proper grounding, sufficient circuit capacity, and a reliable Ethernet connection.
Antminer S21+Plus vs Antminer S21 and S21 Pro
The S21+Plus provides higher available hashrate and improved efficiency compared with the original S21. The S21 Pro generally provides better energy efficiency, while the S21+Plus may offer a more attractive balance between hardware price, hashrate, and availability.
| Feature | Antminer S21 | Antminer S21+Plus | Antminer S21 Pro |
| Algorithm | SHA-256 | SHA-256 | SHA-256 |
| Typical Hashrate | Approx. 200 TH/s | 216–235 TH/s options | Approx. 234 TH/s |
| Typical Efficiency | Approx. 17.5 J/TH | Approx. 16.5 J/TH for 216T | Approx. 15 J/TH |
| Cooling | Air cooling | Air cooling | Air cooling |
| Input Voltage | 220–277V | 220–277V | 220–277V |
| Network Connection | RJ45 Ethernet | RJ45 Ethernet | RJ45 Ethernet |
| Main Positioning | Original S21 model | Higher-output air-cooled option | Higher-efficiency professional model |
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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
Order Processing: All orders are processed and dispatched within 72 hours after verified full payment, unless otherwise stated. Pre-orders typically ship at the end of the month of the batch but may be delayed if the manufacturer delays release/shipment. In stock machines ship in 3-7 business days from our warehouse in China. Bulk orders may require an additional 1–2 business days for handling.
Shipping Carriers: We always try to ship as soon as we can via reputable international carriers such as DHL, UPS or FedEx after full payment has been received and verified.
Estimated Delivery: Standard international shipping usually takes 4–7 business days to arrive after dispatch. Actual delivery may be affected by customs clearance and local carrier conditions, with total delivery time ranging from 8–10 business days.
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 be subject to card processing fees.
We can accept payment by credit or debit card, wire transfer, ACH transfer (through our online portal), and crypto.
Bank transfer clearing times vary by bank and location. Cryptocurrency payments are typically confirmed within 1 business day.
*Machine prices will fluctuate according to the current market price.*
Customs & Delivery: Shipments are managed through DHL, UPS and FedEx for most international destinations. 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.
DDP Option: We offer Delivery Duty Paid (DDP) service in select countries, which covers customs, duties, and taxes in the purchase price. Advance arrangement is required – please contact store@bt-miners.com for details.
Returns to Hong Kong: If a product must be returned to Hong Kong, the customer is responsible for all related shipping fees as outlined in our Returns & Refund Policy.
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 is the Bitmain Antminer S21+Plus?
The Antminer S21+Plus, officially known as the Antminer S21+, is an industrial SHA-256 ASIC miner designed primarily for mining Bitcoin and other compatible SHA-256 cryptocurrencies.
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What hashrate options are available?
Available options may include 216 TH/s, 225 TH/s, and 235 TH/s. Stock and batch availability may change over time.
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How much power does the S21+Plus use?
The 216 TH/s version consumes approximately 3,564W under typical operating conditions. Power consumption for the 225 TH/s and 235 TH/s options should be confirmed according to the selected batch and machine label.
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How much electricity does the 216 TH/s version use per day?
At approximately 3,564W, the miner consumes about 85.54 kWh during 24 hours of continuous operation.
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What coins can the S21+Plus mine?
It supports the SHA-256 algorithm and may mine Bitcoin, Bitcoin Cash, Bitcoin SV, Fractal Bitcoin, Namecoin, and other compatible SHA-256 cryptocurrencies.
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Does the miner include a power supply?
The compatible power supply is normally integrated or included according to the selected product option. External AC cables and connectors may vary by country and may not be included.
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What is the difference between the S21+Plus and S21 Pro?
The S21+Plus is available in multiple hashrate options and offers improved efficiency compared with the original S21. The S21 Pro generally offers better energy efficiency, while the purchase price and available hashrate options may differ.
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Is Bitcoin mining profitability guaranteed?
No. Profitability depends on Bitcoin price, network difficulty, electricity cost, pool fees, cooling expenses, miner purchase price, uptime, and the selected hashrate version.
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How loud is the Antminer S21+Plus?
The exact listed noise level should be confirmed according to the selected batch and official product specifications. As an industrial air-cooled miner, it produces substantial continuous fan noise and is not designed for quiet living environments.
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Is a factory warranty included?
New units include the applicable Bitmain factory warranty stated in the selected product option and order confirmation. Warranty duration and remaining coverage may vary by batch.
