Antminer S21+ Hydro

Price range: 2499,00 $ through 2699,00 $

The Antminer S21+ Hydro from Bitmain has a hashrate of 395Th and a power consumption of 5925W mining Bitcoin (BTC).

Description

Hydro Cooling Powers Mining Innovation
The Antminer S21+ Hydro by Bitmain introduces advanced hydro cooling technology, ensuring miners achieve unmatched stability and efficiency. This innovative water-cooling system outperforms traditional air-cooled approaches, keeping the device at an optimal temperature even under heavy workloads. As a result, operators experience reduced risk of overheating and hardware failure, making the S21+ Hydro an ideal choice for those who prioritize long-term hardware reliability and quiet operation.

Outstanding Performance for Big Operations
Boasting a maximum hash rate of up to 395 TH/s and power consumption around 4785W–5925W, the Antminer S21+ Hydro targets professionals and enterprises aiming to maximize results. This efficient SHA-256 miner achieves about 15J/TH energy efficiency, enabling higher profits with lower energy bills compared to many competitors. Furthermore, its robust engineering and hydro integration make it compatible with standard hydro cooling cabinets, streamlining operations for major mining farms.

Profitability, Comfort, and Sustainability
Profitability remains a highlight since the S21+ Hydro balances high output with low energy use—a huge benefit in areas with affordable electricity. In addition, hydro cooling keeps operational noise at just 50 dB, providing a quieter environment for large facilities and home miners alike. The design’s focus on cooling efficiency, energy conservation, and operational comfort means miners enjoy increased uptime and reduced maintenance expenses, making the Antminer S21+ Hydro a future-proof solution for today’s competitive mining landscape.

  • 1 Year WARRANTY
  • PSU included
Release: February 2025
Size: 410*170*209mm
Weight: 14.5kg
Noise Level: 50db
Hashrate: 395Th
Power Consumption: 5925W
Power Efficiency: 15J/T
Crypto Currency: BTC
Condition: New
Warranty: 1Year

Additional information

Weight 15,2 kg
Mineable Coins

BTC, BCH, BSV, NMC, PPC

Mining Pools

Kryptex, ViaBTC, NiceHash

Shipping

Express Shipping:

✅ Shipping Time: ca. 3-5 business days

✅ Full Tracking Access

✅ UPS/DHL

 

Processing Time:

✅ 1 business day for USDT/USDC transactions

✅ 2 business days for CoinPal transactions

✅ 2-4 business days for bank transfers

 

DDP Shipping (Delivery Duty Paid):

✅ all orders above 50kg

✅ USA & UAE

✅ all Solo Miners

Please keep in mind that VAT is excluded for all other orders. If you have any further questions regarding shipping options or value declaration, please contact us.

We will send you a confirmation email once your order has been shipped. It can take up to 2 business days until our shipping carrier provides you with the tracking information for the standard shipment after your order is being processed. If you order more than one product, it is possible that your order arrives in multiple shipments depending on the availability of the product and location.

For our used products, pick up is available in one of our warehouses in Czech Republic. Please contact us via email at: info@maximiners for more information.

When receiving the product, please make sure that all accessories related to the product are included in the package. In case of any damage during shipment, please keep the carton/box in order for exchange. The customer is responsible for contacting the shipping carrier in the event of a damage during the shipment.

MaxiMiners offers worldwide shipping. All duties, taxes or fees that occur are to be handled by the customer in case the order is not shipped via DDP. Therefore Maxi Miners is not liable for any duties, taxes or fees. It is the responsibility of the customer to take care of all occurring local taxes, duties or fees for each order. Maxi Miners is not liable for any costs of damage from calculating duties and taxes related to your order.

Each product warranty is handled directly through the manufacturer’s warranty process. In the event of a malfunction or defective device, the item will be sent to the manufacturer’s authorized repair center for evaluation and servicing. Please note that the warranty becomes void if any unauthorized modifications are made, including the installation or uploading of third-party firmware.

We offer express shipping via DHL/UPS to the following countries:

Austria, Australia, Belgium, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Ecuador, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Lithuania, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Russia, Saudi Arabia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Arab Emirates, United Kingdom, United States

 

Warranty

✅ 6-12 months (depending on model)

Every product ships with a 6-12 month manufacturer’s warranty tailored to the specific model, giving you peace of mind from day one. When a technical failure occurs, simply send the unit to the nearest authorized repair center—we create your after-sales ticket instantly. Our dedicated support team guides you through every step, ensuring fast resolution so you get back to profitable mining without delays or hassle.

Hosting

Global Hosting Solutions for Your Miners
Maxi Miners delivers flexible hosting options worldwide, perfectly tailored to your needs—start with just 1 miner and scale as you grow. Enjoy ultra-competitive electricity rates from $0.065/kWh across strategic locations optimized for power costs, climate, and latency. Whether you choose cool Nordic sites or sunny energy hubs, we provide rack space, cooling, and 24/7 monitoring. Check out our hosting options to find the perfect location for maximum profitability!

Check out Hosting Options here:

15% OFF with ViaBTC Pool (PPS+)

This offer is limited and only available for new users.

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