Antminer T21 190Th/s SHA-256 Bitcoin ASIC Miner

The Antminer T21 is a high-performance Bitmain SHA-256 ASIC miner designed for Bitcoin mining and other compatible SHA-256 cryptocurrencies. With a maximum hashrate of 190Th/s and approximately 3610W power consumption, the Antminer T21 is built for professional miners who need strong Bitcoin mining performance, efficient energy use, Ethernet connectivity and reliable air cooling.

The Antminer T21 is a powerful Bitcoin mining machine for mining farms, hosted mining clients, warehouse operators and advanced miners comparing modern SHA-256 ASIC hardware. With approximately 19 J/Th efficiency, the Antminer T21 offers a strong balance of hashrate and power consumption for serious Bitcoin mining setups.

Before purchasing the Antminer T21, buyers should compare hardware price, electricity cost, Bitcoin market value, SHA-256 mining difficulty, pool fees, cooling requirements, shipping charges, warranty coverage and machine condition. Mining income changes regularly, so profitability should always be treated as an estimate rather than guaranteed revenue.

Browse more Bitmain Antminer miners, explore our ASIC miners collection, or compare advanced SHA-256 models in our Bitmain Antminer S21 Series guide.

Antminer T21 Overview

The Antminer T21 is a Bitmain SHA-256 ASIC miner built for Bitcoin mining and compatible SHA-256 cryptocurrencies. It delivers a maximum hashrate of 190Th/s with approximately 3610W power consumption.

The Antminer T21 is designed for miners who want modern Bitcoin mining power in a professional ASIC format. Its 190Th/s output makes it suitable for mining farms, hosted facilities and serious operators who need stronger performance than older SHA-256 machines.

Because the Antminer T21 uses SHA-256, it is not designed for Litecoin, Dogecoin, Kaspa or Dash mining. Litecoin and Dogecoin use Scrypt, Kaspa uses KHeavyHash, and Dash uses X11. The Antminer T21 should be evaluated specifically for Bitcoin and compatible SHA-256 mining.

With a listed noise level of around 75dB and a power draw above 3.6kW, the Antminer T21 is best used in a dedicated mining room, garage, hosting center, warehouse or professional mining farm with proper airflow and electrical planning.

Antminer T21 Specifications

Actual hashrate, wall power, temperature, fan speed and noise can vary according to firmware, power quality, airflow, ambient conditions, miner condition and operating configuration.

Antminer T21 SHA-256 Mining Performance

The Antminer T21 delivers 190Th/s of SHA-256 hashrate. This gives Bitcoin miners strong processing power for participating in mining pools and supporting continuous SHA-256 mining operations.

Hashrate measures how much mining work the machine can perform. A higher hashrate can increase a miner’s share of pool rewards, but hashrate alone does not guarantee profit because revenue also depends on Bitcoin price, network difficulty, pool fees and uptime.

The Antminer T21 is stronger than many older Bitcoin ASIC miners and is often compared with S19, S19 XP, S21 and S21 Pro models. Buyers should compare total cost, electricity rate and efficiency before choosing the best machine.

Pool-side performance may vary because of firmware version, chip condition, power stability, cooling quality, mining-pool latency and rejected shares. Operators should monitor accepted shares, rejected shares, temperature, fan speed and average hashrate during continuous mining.

Power Consumption and Energy Efficiency

The Antminer T21 consumes approximately 3610W during rated operation. This equals 3.61 kilowatts of continuous electrical demand.

When operating continuously for 24 hours:

3.61kW × 24 hours = 86.64kWh per day

At an electricity rate of $0.10 per kWh:

86.64kWh × $0.10 = approximately $8.66 per day

These estimates cover only the listed miner power draw. They do not include ventilation, air conditioning, networking equipment, power-distribution losses, mining-pool fees, hosting charges, shipping costs or maintenance expenses.

Based on 3610W and 190Th/s, the estimated efficiency of the Antminer T21 is approximately 19 J/Th. Buyers should calculate full facility-level operating costs because cooling and electrical infrastructure can increase the real cost of Bitcoin mining.

Antminer T21 Profitability

Antminer T21 profitability depends on Bitcoin mining revenue minus electricity, pool fees, cooling, hosting, maintenance and hardware costs. The miner does not produce fixed income because BTC price, SHA-256 mining difficulty and total network hashrate change regularly.

Important profitability factors include:

• Bitcoin market value: BTC price affects the fiat value of mined rewards.
• SHA-256 network difficulty: Higher difficulty can reduce rewards for the same 190Th/s hashrate.
• Electricity cost: Power is usually the largest recurring mining expense.
• Mining-pool fees: Pool fees reduce gross mining income.
• Cooling cost: Ventilation and heat management may add extra operating cost.
• Hardware price: Purchase cost affects the estimated payback period.
• Miner condition: Used hardware may require fan, hashboard or power-supply repairs.
• Miner uptime: Downtime reduces valid work submitted to the pool.
• Shipping and duties: Import fees can increase total delivered cost.

To estimate net income, subtract electricity, pool, cooling, hosting and maintenance costs from projected mining revenue. Then compare the net daily result with the hardware purchase price to estimate a basic payback period.

Any ROI estimate for the Antminer T21 should be updated regularly and treated as a projection rather than guaranteed profit.

Review live Bitcoin market data on CoinMarketCap Bitcoin, check Bitcoin network activity on Mempool Space, and compare mining estimates with the NiceHash profitability calculator.

What Coins Can the Antminer T21 Mine?

The Antminer T21 uses the SHA-256 mining algorithm. It is mainly used for Bitcoin mining, but it can also mine other compatible SHA-256 cryptocurrencies when supported by active mining pools.

• Bitcoin (BTC)
• Bitcoin Cash (BCH)
• Bitcoin SV (BSV)
• Other compatible SHA-256 cryptocurrencies

The Antminer T21 cannot mine Litecoin, Dogecoin, Kaspa or Dash because those networks use different mining algorithms. Always match the miner to the correct algorithm before purchasing mining hardware.

Antminer T21 Price and Buying Factors

The Antminer T21 price can vary depending on machine condition, seller reputation, market demand, Bitcoin price, warranty coverage, included power supply, shipping destination and current stock availability.

Before accepting a purchase offer, confirm:

• Whether the miner is new, used or refurbished
• The exact 190Th/s configuration
• Whether a compatible power supply is included
• Whether AC power cords are included or sold separately
• Testing documentation and live hashrate proof
• Power-draw readings
• Fan and control-board condition
• Hashboard condition
• Warranty coverage
• Previous repair history
• Shipping, insurance, duties and local taxes
• Return and replacement policy

A low advertised price may look attractive, but a tested Antminer T21 from a reliable supplier can provide better long-term value than an unverified unit with unknown condition.

You can request Antminer T21 pricing from HashTitans and compare mining equipment options through ASIC Miner Value.

Antminer T21 Setup Requirements

The Antminer T21 requires stable electrical infrastructure, proper cooling and reliable Ethernet connectivity. It should be installed only where the power system can safely support continuous 3610W operation.

1. Inspect the miner: Check the casing, fans, cables, power connectors and Ethernet port for visible damage.
2. Confirm electrical capacity: Make sure the circuit and power equipment can support continuous miner load.
3. Connect Ethernet: Attach the miner to a stable wired network.
4. Position the miner: Keep air intake and exhaust clear of walls, boxes and loose cables.
5. Locate the IP address: Use a network scanner or the manufacturer’s recommended method.
6. Open the miner dashboard: Enter the miner’s local IP address in a browser.
7. Add pool information: Enter the SHA-256 mining pool URL, worker name and password.
8. Save settings: Allow the miner to connect and begin hashing.
9. Monitor startup: Check hashrate, accepted shares, rejected shares, fan speed and temperature.

Electrical work should be completed or inspected by a qualified technician where required. For manufacturer resources, visit the Bitmain Support Center.

Cooling, Heat and Noise

The Antminer T21 uses air cooling and produces around 75dB of noise. It is best used in a dedicated mining room, garage, warehouse, hosting facility or professional mining farm rather than a quiet living area.

Good airflow is important because most of the miner’s electrical consumption becomes heat during operation. Hot exhaust air should be removed from the mining area so it does not recirculate back into the machine.

Recommended cooling practices include:

• Provide unrestricted cool-air intake
• Direct hot exhaust away from the miner
• Prevent exhaust air from returning to the intake
• Keep ventilation paths free from dust
• Operate within the recommended 5°C to 45°C range
• Keep humidity within the recommended 10% to 90% range
• Inspect fans regularly
• Use alerts for overheating and hashrate loss
• Maintain stable electrical power

Do not place the Antminer T21 inside a sealed soundproof enclosure without professionally engineered airflow. Restricted ventilation can cause overheating, unstable hashrate and hardware damage.

Antminer T21 Maintenance Tips

Routine maintenance helps the Antminer T21 maintain stable hashrate, reduce rejected shares and extend hardware lifespan.

• Monitor daily hashrate and accepted shares
• Check rejected-share percentage
• Review board and chip temperatures
• Inspect fan speeds and unusual vibration
• Keep intake and exhaust pathways clean
• Remove dust using safe, approved methods
• Inspect Ethernet and power connections
• Use compatible firmware only
• Review logs for recurring errors
• Investigate reduced hashrate quickly
• Keep the mining area clean and dry

Shut down the miner safely before physical cleaning or inspection. Repairs involving power supply, controller or hashboards should be completed by qualified technicians.

Antminer T21 Mining Pool Compatibility

The Antminer T21 connects to compatible SHA-256 mining pools through Ethernet. Pool mining generally provides more consistent payouts than solo mining by combining hashrate from many miners.

Popular Bitcoin mining pool resources include:

• Antpool
• F2Pool
• ViaBTC

Before selecting a mining pool, compare SHA-256 support, pool fees, payout method, minimum withdrawal limits, server location, latency, pool reliability and rejected-share performance.

Compare Similar Bitcoin Miners

The Antminer T21 is a modern SHA-256 miner for buyers comparing Bitmain Bitcoin ASICs across the T-series, S19 series and S21 series.

Compare related mining hardware:

• Bitmain Antminer S19 Pro Price
• Antminer S19K Pro
• Antminer S19j XP
• Antminer S21 Pro
• Bitmain Antminer S21 Series Guide

The best mining machine depends on your target coin, electricity rate, hardware price, cooling capacity, warranty coverage, miner condition and expected operating life.

Who Should Buy the Antminer T21?

The Antminer T21 is best suited for buyers who understand ASIC mining requirements and have access to stable power, effective cooling, compatible SHA-256 pools and reliable wired internet.

• Bitcoin miners seeking 190Th/s SHA-256 hardware
• Mining farms expanding hashrate with efficient ASIC miners
• Hosted mining customers
• SHA-256 mining setups with affordable electricity
• Buyers comparing Antminer T21 vs S19 or S21 miners
• Resellers sourcing Bitcoin ASIC miners
• Miners who can manage heat, noise and continuous power demand

The Antminer T21 may not be suitable for casual home users who need quiet equipment, low power consumption or simple plug-and-play profitability.

Frequently Asked Questions

What is the Antminer T21 hashrate?

The Antminer T21 delivers 190Th/s hashrate on the SHA-256 algorithm.

How much power does the Antminer T21 use?

The Antminer T21 uses approximately 3610W of power, equal to about 86.64kWh per day when running continuously for 24 hours.

What is the efficiency of the Antminer T21?

The Antminer T21 has an estimated efficiency of approximately 19 J/Th based on 190Th/s hashrate and 3610W power consumption.

What coins can the Antminer T21 mine?

The Antminer T21 can mine Bitcoin and other SHA-256 cryptocurrencies such as Bitcoin Cash when supported by compatible mining pools.

Is the Antminer T21 profitable?

Profitability depends on Bitcoin price, electricity cost, mining difficulty, pool fees, cooling expenses, machine condition and purchase price.

Does the Antminer T21 use Wi-Fi?

No. The Antminer T21 normally uses Ethernet for network connectivity.

Can the Antminer T21 mine Litecoin or Dogecoin?

No. The Antminer T21 uses SHA-256. Litecoin and Dogecoin use Scrypt and require Scrypt mining hardware.

Where can I request Antminer T21 pricing?

You can contact HashTitans to request current Antminer T21 stock, pricing, shipping information and warranty terms.

Request Antminer T21 Price and Availability

Before ordering, confirm the exact 190Th/s configuration, 3610W power rating, power supply details, AC cable requirements, machine condition, warranty coverage, shipping charges and expected delivery schedule.

Check Antminer T21 Availability & Price

Antminer T21 190Th/s SHA-256 Bitcoin ASIC Miner