Bitmain S21+ - 225 TH/s: High-Efficiency SHA-256 ASIC Miner for Bitcoin Mining

The Bitmain S21+ is a top ASIC miner designed for the SHA-256 algorithm, offering a strong 225 TH/s hashrate for mining Bitcoin (BTC) and Bitcoin Cash (BCH). With 15.5 J/TH efficiency and 3712W power consumption, it balances performance and cost for all mining scales. Its advanced chips boost performance while reducing environmental impact, and its compact design fits easily into any setup. Opt for shipping or hosting at $0.04/kWh electricity rates to maximize profitability.

Historical and Projected Profitability

Profitability Chart: From April to August 2025, daily earnings range from $9 to $14 USD, averaging $11.75 with $0.04/kWh rates. 

The Bitmain S21+ achieves ROI in 8-15 months, depending on Bitcoin prices and energy costs, with $11.75 daily profitability.

Technical Specifications

Specification	Details
Vendor	Antminer
Brand	Bitmain
Model	S21+
Hash Rate	225 TH/s
Algorithm	sha-256
Supported Coins	Bitcoin (BTC)
Power Consumption	3712 W
Energy Efficiency	15.5 J/TH
Cooling System	Air-cooling
Power Cord	Shipped according to client's destination
Dimensions	445x215x295 mm
Noise Level	76 dB
Operating Temperature	5°C to 45°C
Network Interface	Ethernet
Release Date	June, 2025

 

Profitability and ROI Insights

Use our Profitability Calculator to estimate earnings based on Bitcoin prices, $0.04/kWh hosting rates, and network difficulty.

Flexible Deployment Options: Shipping or Hosting

Shipping: Direct delivery from Shenzhen via DHL, UPS, FedEx, or TNT in 5-7 days. Secure packaging with tracking; costs vary by location (e.g., 10% tax in USA from April 2025). Bulk orders over $500,000 get custom pricing.

Hosting: Deploy in USA, Dubai, Norway, Finland, Ethiopia or Nigeria with $0.04/kWh rates. Enjoy hands-off operation with 24/7 maintenance.

Location	Electricity Rate	ROI
USA 🇺🇸	$0.065 / kWh	13.48 month(s)
Nigeria 🇳🇬	$0.047 / kWh	10.94 month(s)
Ethiopia 🇪🇹	$0.054 / kWh	11.81 month(s)
Dubai 🇦🇪	$0.059 / kWh	12.51 month(s)
Finland 🇫🇮	$0.069 / kWh	14.22 month(s)
Norway 🇳🇴	$0.078 / kWh	16.2 month(s)

Hosting Benefits

7-Year Full Warranty

95%+ Uptime

Deployment in 1-7 Days

Exchange Services for FIAT and cryptocurrencies

0% Mining Fee – Keep all coins Hosting cuts infrastructure needs and boosts profits with low-cost energy.

Key Features and Benefits

High Hashrate and Efficiency: Provides 225 TH/s and 15.5 J/TH efficiency for lower energy costs.

Advanced Chip Technology: Uses top chips for strong Bitcoin hash power.

Compact Design: Fits at 445x215x295 mm with durable build.

Enhanced Security: Protects against threats with built-in safeguards.

Easy Monitoring: Tracks hashrate, power, and temperature with adjustable settings.

Versatile Algorithm: Supports SHA-256 and multi-coin mining.

Stable Connectivity: Ensures reliable remote management via Ethernet.

Why Choose the Bitmain S21+?

The Bitmain S21+ excels in SHA-256 mining with 225 TH/s hashrate and 15.5 J/TH efficiency, ideal for all miners. Its compact design and easy software suit any scale, while $0.04/kWh hosting enhances profitability. With strong security, it’s perfect for maximizing Bitcoin earnings.

Warranty, Shipping, and Support

Warranty: 7 years for hosted, 12 months for shipped (voided by misuse).

Shipping: 5-7 day global delivery with tracking; bulk orders get quotes.

Payment Options: Accepts cryptocurrency or wire transfer; hosting costs deduct from profits.

Customer Support: 24/7 assistance for setup, troubleshooting, and more.