Antminer S21+

Description

Antminer S21+

Are you looking for a powerful and efficient Bitcoin miner for modern mining operations? The Antminer S21+ from Bitmain is a high-performance SHA-256 ASIC miner designed to deliver strong hashing power with improved energy efficiency compared to previous air-cooled models.

The Antminer S21+ operates on the SHA-256 algorithm, making it suitable for mining Bitcoin (BTC) as well as other SHA-256 cryptocurrencies such as Bitcoin Cash (BCH) and Bitcoin SV (BSV). This miner delivers a maximum hashrate of around 216–235 TH/s depending on the version, while consuming approximately 3564W to 3877W of power, resulting in an efficiency of about 16.5 J/TH.

Built with Bitmain’s latest ASIC chip architecture, the S21+ provides reliable long-term performance for professional mining farms and dedicated mining facilities. With over 200 TH/s hashing power and roughly 3.5–3.8 kW power consumption, the miner offers a strong balance between high computing performance and energy efficiency for Bitcoin mining operations.

The Antminer S21+ uses an advanced air-cooling system with multiple high-speed fans to maintain stable temperatures during continuous mining workloads. It typically operates with a noise level around 75–76 dB, making it suitable for data-center environments or well-ventilated mining facilities.

The miner supports 220–277V power input and connects through a standard RJ45 Ethernet interface for network communication and remote management. Its compact design measures approximately 400 × 195 × 290 mm, allowing easy deployment in mining racks or large-scale mining farms.

With up to 235 TH/s SHA-256 hashing power, around 3.6–3.9 kW power consumption, and Bitmain’s proven ASIC mining technology, the Antminer S21+ provides a powerful and efficient solution for modern Bitcoin mining operations that require stable performance and optimized energy usage.

Antminer S21+ Technical Specifications

• Hashrate: 216 TH/s (variants available up to 235 TH/s)
• Power Consumption: 3564 W
• Efficiency: 16.5 J/TH
• Algorithm: SHA-256
• Chip: 3nm (advanced bitmain chip architecture)
• Cooling: Air-cooling (4 high-speed fans)
• Dimensions: 400 x 195 x 290 mm
• Weight: 15.4 kg (Net weight)
• Operating Temp: 0°C to 45°C
• Humidity: 10% to 90%
• Noise Level: 76 dB
• Network Connection: Ethernet RJ45
• Voltage: 220V – 277V AC

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Notes

• Payment accepted in USDT, USDC, BTC, or USD. The unit price and total price of the products, and the amount paid are denominated in U.S. dollars.
• The shipping costs, customs charges, and taxes(if any) are not included in the retail price shown above.
• After an order has been submitted, a request to cancel the order, refund any part of the ordered amount or change the ordered item(s) to different item(s) or different batch(es) will not be entertained by BITMAIN.
• The pictures shown are for reference only; the final shipment version shall prevail.
• 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%.
• Caution: Wrong input voltage may probably cause product damaged.

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Shipping Details

• Shipments will be scheduled on a first-paid-first-ship basis for orders on which BITMAIN has received full payment.
• You are responsible for any customs delays or returned shipments due to a lack of proper documentation. It’s highly recommended to be aware of local customs clearance policies and to prepare all customs documentation ahead of time to avoid any customs clearance delays or unexpected costs.

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Warranty

• A 365-day warranty is provided starting from the shipping date. BITMAIN will cover shipping costs when shipping a replacement unit within the warranty period.
• The warranty only applies to the original purchaser who purchased the machine directly from BITMAIN. Once the miner is resold, warranty coverage becomes the responsibility of the re-seller.
• If the user fails to use the product per the given instructions, specifications, and conditions provided or changes the function settings of the unit without BITMAIN’s prior consent, BITMAIN will not be liable for any damage arising there from.