Antminer S19j Pro
Powerful hardware. Expert setup.
100% uptime infrastructure.
ASIC Image
Antminer S19j Pro

Bitmain Antminer S19j Pro

Technical specifications

Hash-rate
104
Algorithm
SHA-256
Power consumption
3050
Release year
2021
Availability
Out of stock
Description

Why Choose Antminer S19j Pro?

The Antminer S19j Pro is engineered to dominate SHA-256 mining. Its combination of high hash power, thermal stability, and low energy consumption makes it a preferred choice for miners aiming for long-term profitability and farm scalability. Optimized for maximum efficiency, this hardware ensures stable operations even under continuous load conditions, providing an unmatched blend of performance and operational longevity.  
Feature Specification Feature Specification
Model Bitmain Antminer S19j Pro Hashrate 100 TH/s ± 3%
Power Consumption 3050W ± 5% Efficiency 30.5 J/TH
Network Connectivity Ethernet Dimensions 400 x 195 x 290 mm
Storage/Operating Humidity 5–95% non-condensing Cooling System Dual industrial fans
Firmware Bitmain Antminer OS v1.6+ PSU Compatibility APW12 PSU (included)
ROI Potential 6–12 months SHA-256 Block Efficiency Optimized for maximum bitcoin profit
Fan Speed Control Adjustable via web interface Hardware Lifetime Expectancy 3–5 years under continuous operation
Overclock/Underclock Capability Yes Recommended Pool Setup Multiple SHA-256 pools supported

How to Start Mining with Antminer S19j Pro

“Setting up your Antminer S19j Pro is straightforward—just follow the steps, and  you're ready to mine.”
Setting up your Antminer S19j Pro requires minimal time but maximum attention to power management and network configuration. Connect the ASIC to a stable 220V power source, ensuring a dedicated circuit to maintain uninterrupted operations. The device comes preconfigured for standard SHA-256 mining pools, but miners seeking optimal ROI often adjust firmware settings for farm-specific efficiency optimization.

Estimate Time

Mining profitability depends on hashrate, Bitcoin network difficulty, and energy efficiency. The Antminer S19j Pro achieves a high ROI in competitive mining scenarios, making it ideal for farms seeking scalable operations. Professional users report consistent returns when combining multiple units under controlled environmental conditions.
  • Typical ROI estimation ranges between 6 and 12 months depending on electricity costs and Bitcoin market fluctuations.
  • Hashrate optimization and energy management directly influence break-even time and overall farm efficiency.
By aligning hardware management with environmental control, miners can reduce downtime, extend the lifecycle of each ASIC, and maintain peak SHA-256 performance over years of operation.

Shipping

EZ Blockchain offers expedited shipping with full tracking for all Antminer S19j Pro units. Our logistics are optimized to handle high-value ASIC hardware, ensuring safe and timely delivery to your mining farm.
Shipping Option Delivery Time Cost
Standard Ground 5–7 business days Free for orders > $10,000
Expedited Air 2–3 business days Calculated at checkout
International Priority 7–10 business days Varies by region

Returning Policy

We prioritize customer satisfaction with a flexible return policy for defective or mis-shipped units.
  • Returns are accepted within 30 days of delivery.
  • Products must include all original packaging and accessories.
  • Refunds are processed within 7 business days after inspection.
Extended warranty returns or exchanges for technical faults are handled with precision to minimize downtime.
  • Hardware defects are covered up to 180 days from the date of purchase.
  • Technical support is available 24/7 to guide setup, firmware updates, and troubleshooting.
  • Replacement ASICs shipped within 5 business days after verification.
EZ Blockchain ensures every miner receives a reliable, fully operational unit—because your farm’s uptime directly correlates with profitability.

Warranty

All Antminer S19j Pro hardware comes with Bitmain’s standard warranty, covering manufacturing defects and critical component failures. Professional miners benefit from extended support options for multi-unit farm deployments, including on-site guidance and firmware assistance.
  • Standard warranty period: 180 days for all ASIC units.
  • Coverage includes power supply, hash board, and control board failures.
EZ Blockchain provides optional extended warranty packages, allowing farm operators to secure continuous operations.
  • Extended warranty: Up to 12 months for full hardware protection.
  • Priority replacement and technical support for large-scale deployments.
With comprehensive warranty coverage, you can mine bitcoin confidently, maximizing the Antminer S19j Pro profitability without compromising on efficiency or hashrate performance.
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KEY ADVANTAGES

Proven Hashrate & Efficiency

Delivers up to 104 TH/s on the SHA-256 algorithm with reliable power efficiency, making it a favorite among Bitcoin miners.

Stable Cooling System

Dual-fan design ensures consistent temperature control and optimal performance, even in large mining farms.

Quiet and Reliable

Runs at a reasonable noise level for its class, ensuring smooth operation without unnecessary interruptions.

Durable Components

Built with industrial-grade parts, designed to work 24/7 with minimal downtime.

Cost-Effective Power Use

Approximately 3,050 W power consumption, balancing profitability with energy costs.

Plug-and-Play Setup

Comes with integrated software for quick configuration and monitoring.

World Class
Service
starstarstarstarstar
Consistent results — great value for Bitcoin mining.
Jason B.
starstarstarstarstar
Reliable workhorse for 24/7 operation — highly recommended.
Robert K.
starstarstarstarstar
Best long-term investment in our mining operation.
Nina V.

OTHER ASICS

ASIC Image
Bitmain
Antminer S21
$3,700.00
Hash-rate 200 TH/s
Algorithm
SHA-256
Power consumption
3551
Release year
2023
ASIC Image
Bitmain Antminer S21
$3,700.00
Hash-rate
200 TH/s
Algorithm
SHA-256
Power consumption
3551
Release year
2023
Description

WithAntminer S21, profitabilityfrom mining becomes tangible and easily achievable. One of the latest entries in the Bitmain ASICs series, S21 is a beast of a mining setup, both powerful and flexible. It is a great, balanced entry point for new miners and a highly-efficient hardware addition or replacement for existing operations.

Current Bitmain Antminer S21 price: $4,200
Why Choose Antminer S21?
The Bitmain Antminer S21 is a state-of-art ASIC miner designed for SHA-256 algorithm cryptocurrencies like Bitcoin. With a hash rate of up to 195 TH/s and power consumption of 3500W, it offers an outstanding energy efficiency of 17 J/TH.

The Antminer S21 is designed for continuous operation, maximized uptime, and active profitability. With its high hash rate threshold, users can expect peak mining performance. Depending on network difficulty and electricity costs, Antminer S21 can help achieve highly profitable margins.

Bitmain Antminer S21 specifications:

High performance: Delivers a robust 195 TH/s hash rate at peak performance.
Energy efficiency: Consumes 3500W, optimizing electricity usage.
Compact design: Measures 400mm x 195mm x 290mm, fitting easily into any setup.
Durable build: Weighs 15.4 kg, keeping stable during operation.
Optimal operating conditions: Functions best between 0–45°C with 10–90% humidity.
How to Start Mining with Antminer S21?
It is fairly easy to install and start using a newly-purchased Antminer S21 even withoutEZ Blockchain’s assistance:

Unbox and inspect: Check that all components are present and undamaged.
Connect to power: Use a compatible power supply unit (PSU) to connect the miner to a 220~277V AC outlet.
Set up network: Connect the miner to the internet via an RJ45 Ethernet cable.
Access miner interface: Use a web browser to enter the miner’s IP address and access the configuration page.
Configure mining pool: Input your preferred mining pool details and wallet address.
Start mining: Save settings and begin the mining process.
Useful: Running the miner in stock configuration for a few hours before immersion cooling ensures all systems operate correctly, preventing potential damage during fluid immersions.

Important: The S21 model’s single power cord design simplifies electrical connections compared to older models, but high current requirements still mandate professional electrical inspection for safety

Delivery Time
Your newly-placed order for an ASIC miner takes 7–14 business to arrive, depending on the stock situation and your location. We provide a tracking number which you can use to watch the shipping process in real time and get updates on each milestone.

Shipping
We offer international shipping via big trusted couriers. Shipping costs may vary based on destination and package weight. For detailed shipping options and costs, pleasecontact EZ Blockchain’s support.

Return policy
All sales of the Antminer S21 are final and non-refundable. We advise customers to review their orders carefully before purchase. For more details, consult Bitmain’s terms and conditions.

Warranty
The Antminer S21 comes with a 365-day warranty, which allows addressing manufacturing defects in up to a year from the official shipment date. Customers can check their warranty status by entering the miner’s serial number on Bitmain’s warranty check page.

Got more questions? EZ Blockchain will help you find your best-fitting configuration of theAntminer S21 for sale, assist with its full setup, and support you further, every step of the way.

ASIC Image
Bitmain
Antminer S21 XP
$6,200.00
Hash-rate 270 TH/s
Algorithm
SHA-256
Power consumption
3645
Release year
2025
ASIC Image
Bitmain Antminer S21 XP
$6,200.00
Hash-rate
270 TH/s
Algorithm
SHA-256
Power consumption
3645
Release year
2025
Description

The Bitmain Antminer S21 XP is a cutting-edge Bitcoin (BTC) mining device, designed for maximum efficiency and performance. It utilizes advanced SHA-256 ASIC chips, delivering a high hash rate of up to 270 TH/s, making it one of the most powerful miners on the market.

Equipped with a built-in controller and an intuitive user interface, the S21 XP ensures easy setup and seamless monitoring. Its integrated power supply unit eliminates the need for an external power source, while its enhanced cooling system maintains optimal temperature and stability, even under high workloads.

Mining profitability depends on factors such as Bitcoin price, network difficulty, and electricity costs. It is essential to evaluate these variables and calculate potential expenses before investing in mining hardware.

ASIC Image
Bitmain
Antminer S21 Pro
$4,475.00
Hash-rate 234 TH/s
Algorithm
SHA-256
Power consumption
3510
Release year
2025
ASIC Image
Bitmain Antminer S21 Pro
$4,475.00
Hash-rate
234 TH/s
Algorithm
SHA-256
Power consumption
3510
Release year
2025
Description

The Bitmain Antminer S21 Pro is a high-performance Bitcoin (BTC) mining device, engineered for maximum efficiency and profitability. It utilizes advanced SHA-256 ASIC chips, delivering a hash rate of up to 234 TH/s, making it one of the most powerful miners available.

Designed for ease of use and durability, the Antminer S21 Pro features a built-in controller and a user-friendly interface, ensuring smooth setup and monitoring. Its integrated power supply unit eliminates the need for external power sources, while its advanced cooling system maintains stable temperatures even under heavy workloads.

Mining profitability with the Antminer S21 Pro depends on Bitcoin price, network difficulty, and electricity costs. To maximize returns, it is crucial to analyze these factors and calculate operating expenses before investing in mining hardware.

ASIC Image
Bitmain
Antminer L9
$7,950.00
Hash-rate 0.016 TH/s
Algorithm
Scrypt
Power consumption
3360
Release year
2025
ASIC Image
Bitmain Antminer L9
$7,950.00
Hash-rate
0.016 TH/s
Algorithm
Scrypt
Power consumption
3360
Release year
2025
Description

The Bitmain Antminer L9 is a high-performance Litecoin (LTC) and Dogecoin (DOGE) mining device, designed for maximum efficiency and profitability. It utilizes advanced Scrypt ASIC chips, delivering a hash rate of up to 16 TH/s, making it one of the most powerful Scrypt miners available.

Engineered for ease of use and durability, the Antminer L9 features a built-in controller and an intuitive user interface, ensuring smooth setup and real-time monitoring. Its integrated power supply unit eliminates the need for external power sources, while its enhanced cooling system maintains optimal temperature and stability during intensive mining operations.

Mining profitability with the Antminer L9 depends on Litecoin and Dogecoin market prices, network difficulty, and electricity costs. Conducting a thorough cost analysis and evaluating mining conditions is essential before investing in this hardware.

FREQUENTLYASKEDQUESTIONS

What algorithm does the S19j Pro use?

SHA-256, ideal for Bitcoin mining.

What is the hashrate?

96–104 TH/s depending on model variant.

What is the power consumption?

Around 3,050 W.

Is it good for home mining?

Suitable for farms, home use possible with noise isolation.

Does it have a web interface?

Yes, supports easy configuration and monitoring.

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