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Power
3500W
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Hashrate
200.00 TH/s
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Efficiency
17.5 J/T
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Algorithm
SHA-256
Bitmain Antminer S21 Bitcoin Miner 200TH/S
from US$1,070.00
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 Profitability Calculator
Daily Earning
ROI
Electricity
Electricity ratio
Net Profit
Miner Profitability History
Model Antminer S21 (200Th) from Bitmain mining SHA-256 algorithm with a maximum hashrate of 200Th/s for a power consumption of 3550W.
S21 200 TH/s: compare the series before ordering
Browse the Bitcoin miner collection, compare this exact model with the Antminer S21 Pro 234 TH/s and Antminer S23 318 TH/s, then read the Bitcoin mining profitability guide. Use the ASIC miner profitability table with current power, difficulty, fee and electricity inputs. Revenue, profit and payback are estimates, not guarantees.
Technical Specifications
| Product Glance | Value |
|---|---|
| Model | S21 |
| Crypto algorithm/coins | SHA256 | BTC/BCH/BSV |
| Typical hashrate | 200.00 TH/s |
| Power on wall @35℃, Watt | 3500W |
| 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 | 400*195*290 |
| Server size(length*width*height, with package), mm | 570*316*430 |
| Net weight, kg | 15.4 |
| Gross weight, kg | 17.2 |
| Noise@30℃, dBA | 76 |
| Environment Requirements | Value |
|---|---|
| Storage temperature, °C | -20~70 |
| Operation humidity(non-condensing), RH | 10~90% |
| Operation temperature,°C | 0~45 |
| Operation altitude, m | ≤2000 |
| What's in the Box | Value |
|---|---|
| Original factory mining machinery | ✓ |
| Power supply | ✓ |
| Shockproof packaging | ✓ |
(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.
Estimated dispatch and delivery
Please select the applicable product batch. Future-batch and pre-order products follow the manufacturer’s actual release and dispatch schedule. Manufacturer delays may occur, and BT ECOMMERCE CO., LIMITED is not responsible for losses arising from those delays. If no batch selection is shown, the product is treated as in stock.
Shipping
New in-stock miners are normally dispatched within 1–3 business days after full payment is verified. Used in-stock miners require testing and are normally dispatched within 3–7 business days after full payment is verified. After dispatch, delivery usually takes 5–7 business days, subject to customs clearance and local carrier conditions. A tracking number will be emailed after shipment.
Cancellation, returns and faults
All sales are final and non-refundable. A cancellation may be requested before the order is handed to the carrier and is subject to a 25% cancellation fee. Orders cannot be cancelled after handover to the carrier. If a miner is faulty on arrival, contact us promptly. After diagnosis, eligible cases will be handled by repair or replacement only; no refund will be issued. Contact store@bt-miners.com for assistance.
VIABTC
ViaBTC
PPS+
Block Reward Fee: 4%
Transaction Fee Reward Fee: 2%
PPLNS
Pool Fee: 2%
Fees may vary by coin and mining method.
ANTPOOL
ANTPOOL
Multiple payment methods available.
Payment Methods: PPS+, PPLNS and other methods depending on coin
Pool Fee: Varies by coin
Minimum Payout: Varies by coin
Payout Schedule: Varies by coin
F2POOL
F2Pool
Multiple payout methods available.
Reward Scheme: Varies by coin
Pool Fee: Varies by coin and payout method
Minimum Payout: Varies by coin
Payout: Automatic payouts when the threshold is reached
Antminer S21 Description
Antminer S21 DescriptionThe Bitmain Antminer S21 delivers a dependable 200TH/s of SHA-256 mining performance with solid 17.5J/TH efficiency, making it a strong choice for Bitcoin miners seeking reliable output at a competitive price. Operating at around 3500W, the S21 provides a balanced combination of power and productivity suitable for growing farms and hosting environments. Its advanced chip design, stable airflow, and durable build ensure consistent 24/7 mining with reduced maintenance needs.
BT-MINERS offers fast worldwide delivery, secure checkout, and full factory warranty support to guarantee a smooth and trusted purchasing experience. For miners looking to expand capacity or enter Bitcoin mining with a cost-effective, stable ASIC, the Antminer S21 remains one of the most practical options.
Antminer S21 Pro vs S21
| Feature | Antminer S21 Pro 234TH/s | Antminer S21 200TH/s |
|---|---|---|
| Hashrate | 234 TH/s | 200 TH/s |
| Power Consumption | 3510 W (approx.) | 3500 W (approx.) |
| Energy Efficiency | ~15 J/TH | ~17.5 J/TH |
| Best Use Case | Large-scale farms, low-cost power, pro hosting | Budget-conscious miners, farm expansion |
| Relative Hardware Cost | Higher upfront price, better long-term efficiency | Lower upfront price, easier entry option |
| Ideal Power Rate | Strong advantage in regions with cheap electricity | Suitable where power cost is moderate |
| Target User Profile | Professional miners optimizing ROI per kWh | Miners focused on lower initial investment |
The Antminer S21 Pro delivers higher efficiency and a stronger 234TH/s hashrate, making it ideal for low-cost power regions and professional mining farms. The standard S21 offers 200TH/s with a lower upfront cost, suitable for budget-focused miners seeking reliable SHA-256 performance.
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Processing & Shipping Time
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Payment Policies
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Taxes and Custom Duties
Order Processing
New in-stock miners are normally dispatched within 1–3 business days after full payment is verified. Used in-stock miners require testing and are normally dispatched within 3–7 business days after full payment is verified. Future-batch and pre-order products follow the manufacturer’s actual release and dispatch schedule. Manufacturer delays may occur, and BT ECOMMERCE CO., LIMITED is not responsible for losses arising from those delays.
Shipping Carriers
Orders are shipped through reputable international carriers such as DHL, UPS or FedEx. A tracking number will be emailed after dispatch.
Estimated Delivery
Delivery usually takes 5–7 business days after dispatch. Customs clearance and local carrier conditions may affect the actual delivery date.
Cancellation and Faults
All sales are final and non-refundable. A cancellation may be requested before handover to the carrier and is subject to a 25% cancellation fee. Orders cannot be cancelled after handover to the carrier. Faulty-on-arrival miners are handled by repair or replacement only after diagnosis.
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 may not be able to cover import duties for all orders entering the USA. Deliveries to other countries may require customers to clear customs and pay duties or taxes. Please notify us promptly if customs requests documents, as improper or delayed filing may result in additional fees or delays.
DDP Option
Delivery Duty Paid (DDP) service may be available in select countries. Advance arrangement is required; please contact store@bt-miners.com for details.
Returns for Repair or Replacement
If diagnosis requires a miner to be returned to Hong Kong or another service location, the customer is responsible for related shipping charges unless otherwise agreed in writing.
All sales are final and non-refundable. A cancellation may be requested before handover to the carrier and is subject to a 25% cancellation fee. Orders cannot be cancelled after handover to the carrier. Eligible faulty-on-arrival cases are handled by repair or replacement only.
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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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Is the S21 a good option for expanding existing farms?
Yes. Its stability, efficiency, and dependable output make it a great choice for scaling mining capacity.
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Who is the Antminer S21 best suited for?
It is ideal for miners needing strong performance at a lower initial cost compared to premium models.
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How loud is the Antminer S21 during operation?
Noise levels typically range from 75–76 dBA, similar to other high-performance ASIC miners.
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Is the S21 suitable for home mining?
It is not recommended for homes due to noise and heat output but performs excellently in mining farms.
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Does the Antminer S21 come with a Bitmain warranty?
Yes. Brand-new units include a full 365-day Bitmain factory warranty.
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What electricity price is ideal for the S21?
The S21 performs best at power rates under $0.10/kWh, depending on Bitcoin price and network difficulty.
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Is the Antminer S21 profitable in 2025?
Yes. It is profitable in regions with moderate electricity prices and can deliver strong long-term ROI.
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What is the efficiency of the Antminer S21?
The S21 operates at approximately 17.5J/TH, offering solid efficiency for SHA-256 mining.
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How much power does the Antminer S21 use?
It consumes around 3500W, providing stable output suitable for farms and hosting environments.
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What is the hashrate of the Antminer S21?
The Antminer S21 delivers a consistent 200TH/s, making it a strong mid-range Bitcoin mining option.
