ANTMINER S21, SHA-256, super efficiency with a top hashrate! The future is coming!
The Bitmain Antminer S21 is the most efficient air-cooled Bitcoin miner. With a hashrate of 200 TH/s and a power efficiency of just 17.5 J/TH, the Antminer S21 200TH sets a new industry standard for SHA-256 mining performance.
At Antminer Distribution Europe, we ship the S21 Antminer directly from the Netherlands, meaning no extra import duties or customs delays for EU customers. Every unit comes with the power supply included and up to two years of warranty, far exceeding the standard 180-day coverage.
Whether you are expanding an existing mining operation or setting up your first ASIC miner, the Bitmain Antminer S21 200TH offers the best balance of hashrate, efficiency, and reliability in its class.
Why choose the Antminer S21 200 TH/s?
The Antminer S21 200 delivers a major leap in mining efficiency compared to its predecessor. Where the S19 XP operated at 21.5 J/TH, the S21 achieves 17.5 J/TH — roughly 19% more efficient. In practice, this means significantly lower electricity costs per Bitcoin mined.
Running at 3,500W, the S21 Antminer consumes approximately €8.40 per day at an electricity rate of €0.10/kWh. Combined with its 200 TH/s hashrate, this makes it one of the most profitable air-cooled miners on the market. Use a mining profitability calculator to estimate your return based on current Bitcoin price and network difficulty.
The Antminer S21 is ideal for both professional mining farms looking to upgrade from older-generation hardware and individual miners who want maximum efficiency without the complexity of hydro-cooled systems.
Bitmain Antminer S21 200TH — Technical specifications
| Product Glance | |
| Model | S21 |
| Algorithm | Cryptocurrency | SHA256 | BTC/BCH/BSV |
| Hashrate, TH/s | 200 |
| Power on wall @25°C, Watt | 3500 |
| Power efficiency on wall @25°C, J/TH(1-1) | 17.5 |
| Detailed Characteristics | |
| Power efficiency on wall @40C,J/TH(1-2) | 19.00 |
| Reference Power on wall, W (1-3) | 3500 |
| DC input voltage range, V(1-4) | 12V~15V |
| DC input current range, A | 267.0 |
| Adapted AC/DC output power requirement, W(1-5). | 4000 |
| Hardware Configuration | |
| Ouantity ofhash chips | 324 |
| Quantity ofhash boards. | 3 |
| Networking connection mode | RJ45 ethernet 10/100M |
| Miner Size (Length*Widthrrght, w/o package), mm | 400*195*290 |
| Net weight, kg | 15.4 |
| Noise, dBA @25C(2-1) | 76 |
| Environment Requirements | |
| Operation temperature,C | 0~45 |
| Storage temperature,C | -40~85 |
| Operation humidity, RH | 10~90% |
The S21 comes with power supply included.
PLEASE NOTE: the C20-P13 (Antwire cable) is included but you need to buy a C19 powercord with at least 16A from your local market if you want to connect the miner to the socket from the wall.
Please kindly note that the required input voltage for S21 is 220V.
The shipping costs for this unit is €25,- in the EU zone. Please ask for a quote for shipping outside EU zone.
Click here to download the manual for installation.
Check here to calculate the actual profit.
Frequently asked questions about the Antminer S21
Q: How much power does the Antminer S21 use?
A: The Antminer S21 200TH consumes 3,500W at the wall under standard operating conditions (25°C). At 40°C, power efficiency increases to 19.0 J/TH.
Q: Is the power supply included with the Bitmain Antminer S21?
A: Yes. Every Bitmain Antminer S21 ships with the power supply unit included. You will need to purchase a C19 power cord (minimum 16A) separately, as well as ensure access to a 220V outlet.
Q: What hashrate does the Antminer S21 200 deliver?
A: The Antminer S21 200 produces a hashrate of 200 TH/s on the SHA-256 algorithm, used for mining Bitcoin (BTC), Bitcoin Cash (BCH), and Bitcoin SV (BSV).
Q: How does the S21 Antminer compare to the S19 XP?
A: The S21 Antminer is approximately 19% more power-efficient than the S19 XP (17.5 J/TH vs 21.5 J/TH), while also delivering a higher hashrate of 200 TH/s compared to the S19 XP’s 140 TH/s.
