Bitmain Antminer S21+ 216TH/s – SHA-256 Bitcoin ASIC Miner 3610W

Bitmain Antminer S21+ 216TH/s – SHA-256 Bitcoin ASIC Miner

The Bitmain Antminer S21+ is a high-performance air-cooled Bitcoin ASIC miner delivering up to 216 TH/s hashrate with only 3610W power consumption for the SHA-256 algorithm. As an upgraded version of the popular Antminer S21, the S21+ offers improved efficiency at 16.7 J/TH, making it a strong choice for miners seeking a balance of performance, efficiency, and affordability. Built by Bitmain, the S21+ is available in multiple hashrate variants (216T, 225T, 235T), giving miners flexibility to choose the configuration that best fits their operation.

Why Choose the Antminer S21+?

The Antminer S21+ from Bitmain is engineered for professional miners who demand maximum performance and sustained profitability. Its competitive energy-to-hash ratio makes it one of the most cost-effective Bitcoin miners available today. Compared to the original Antminer S21, the S21+ delivers higher hashrate with improved chip technology. Whether you are upgrading your mining farm or starting a new operation, the Bitmain Antminer S21+ delivers reliable 24/7 performance with the proven quality and support that Bitmain is known for worldwide.

Key Specifications

• Algorithm: SHA-256 (Bitcoin / BTC)
• Hashrate: 216 TH/s (also available in 225T and 235T variants)
• Power Consumption: 3610W (±10%)
• Energy Efficiency: 16.7 J/TH
• Cooling: Air-cooled (dual fan system)
• Noise Level: ~75 dB
• Operating Temperature: 5°C to 45°C
• Network Connection: Ethernet
• Dimensions: 400 x 195 x 290 mm
• Weight: ~14.6 kg
• Manufacturer: Bitmain

Antminer S21+ Profitability

The Antminer S21+ profitability is highly competitive in the current Bitcoin mining market. With 216 TH/s of SHA-256 hashing power and an efficiency of 16.7 J/TH, the S21+ produces strong daily mining revenue while keeping electricity costs manageable. For miners in regions with low to moderate electricity rates, the S21+ delivers excellent ROI and shorter payback periods than many competing models. The availability of higher hashrate variants (225T and 235T) allows operators to optimize their fleet for maximum profitability based on their specific electricity costs and mining goals.

Antminer S21+ vs. S21 Pro vs. S21 XP

Bitmain's S21 series offers multiple tiers to suit different mining requirements. The Antminer S21+ at 216 TH/s provides an excellent entry point with solid efficiency. The Antminer S21 Pro steps up to 234 TH/s with improved 15 J/TH efficiency for operators who need more hashrate per unit. The flagship Antminer S21 XP pushes performance even further with 270 TH/s. Each model is air-cooled and designed for standard mining environments. For operations seeking the best value per terahash, the S21+ offers the most affordable cost of entry while still delivering professional-grade mining performance.

Multiple Hashrate Options

The Bitmain Antminer S21+ is available in three hashrate configurations: 216T, 225T, and 235T. This flexibility allows miners to select the exact performance level they need. Higher hashrate variants deliver more mining revenue per unit but come at a slightly higher price point. All variants share the same robust build quality, air cooling system, and Bitmain reliability, making the S21+ a versatile choice for mining operations of all sizes.

What's Included

• 1x Bitmain Antminer S21+ ASIC Miner (selected hashrate variant)
• 1x Power cables
• Quick start guide and documentation
• Manufacturer warranty

Buy the Antminer S21+ at CaptainMining

Order your Bitmain Antminer S21+ 216TH/s today from CaptainMining, your trusted source for premium cryptocurrency mining hardware. We offer competitive pricing on all Antminer S21 variants, fast shipping from Canada, and expert customer support. Whether you need the 216T, 225T, or 235T model, CaptainMining has you covered. Buy the Bitmain Antminer S21+ now and start mining Bitcoin efficiently!