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Antminer T21

Name: Antminer T21
SKU: 955
Availability: OutOfStock

The Antminer T21 from Bitmain has a hashrate of 190Th and a power consumption of 3610W mining Bitcoin (BTC).

Description

High-Performance Bitcoin Mining with Antminer T21
The Antminer T21 by Bitmain is a powerful ASIC miner released in early 2024, designed for the SHA-256 algorithm. It delivers a strong hashrate of 190 TH/s while consuming about 3610 watts of power. This translates into a solid energy efficiency of 19 J/TH. Tailored for mining Bitcoin (BTC), Bitcoin Cash (BCH), and Bitcoin SV (BSV), the T21 offers a good balance between performance and power consumption. Its mining capabilities make it well suited for both professional mining farms and advanced enthusiasts aiming for high output with stable performance.

Efficient Cooling and Durable Construction
This model features an air-cooling system with four fans — two intake fans on the front and two exhaust fans at the back — ensuring optimal airflow and effective heat dissipation. It maintains stable operation even during continuous 24/7 mining sessions. The miner’s dimensions are 400 x 195 x 290 mm with a weight of 16.4 kg, making it easy to fit into existing mining rack setups. Despite the powerful cooling, the noise level stays around 75 decibels, typical for industrial miners. The T21 is designed to operate effectively between 0 to 45°C with a wide humidity range, allowing it to adapt to different environmental conditions.

Network Connectivity and User-Friendly Features
The Antminer T21 supports an RJ45 Ethernet port with 10/100M network speed, allowing stable and secure remote management and monitoring. Bitmain provides firmware updates to boost performance, enhance security, and fix bugs, ensuring the device runs optimally throughout its lifespan. With a three-phase power supply requirement of 380 to 415 volts, it guarantees stable energy delivery and allows users to operate at higher overclocking settings if desired. Its modular design simplifies maintenance, reducing downtime, while its robust build assures reliability and longevity over extended use.

1 Year WARRANTY
PSU included

Release:	February 2024
Size:	400195.290mm
Weight:	16.4kg
Noise Level:	75db
Hashrate:	190Th
Power Consumption:	3610W
Power Efficiency:	19.5J/T
Crypto Currency:	BTC
Condition:	New
Warranty:	1Year

Additional information

Weight	16,4 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.

Get 15% OFF

Recommended Mining Pools

Kryptex	easy start for all equipment types, 21 cryptocurrencies, dual mining supported
ViaBTC	15% OFF on PPS+, flexible payout options like PPLNS and SOLO mining
NiceHash	Low Fees, Primarily BTC payouts; mines most profitable coin and converts to BTC