Antminer T21
Budget alternative to S21 with slightly lower efficiency
Professional-Grade Miner
This miner draws 3,610W and produces 75 dB of noise — it is designed for dedicated mining environments, not living spaces. Professional-grade miners deliver the highest hashrate and revenue per unit but require proper infrastructure: a 240V circuit, adequate ventilation or exhaust ducting, and a space where noise is not a concern (garage, basement, warehouse, or outdoor enclosure).
For home miners looking for a quieter alternative, consider our Bitcoin Space Heater builds or explore open-source miners like the Bitaxe that are purpose-built for residential environments.
Calculateur de rentabilité
| Period | Revenue | Electricity Cost | Profit |
|---|---|---|---|
| Daily | $5.83 | $6.06 | $-0.24 |
| Weekly | $40.78 | $42.45 | $-1.68 |
| Monthly | $174.76 | $181.94 | $-7.19 |
| Yearly | $2,126.22 | $2,213.65 | $-87.43 |
Heating offset estimates the value of heat replacing an electric space heater during heating season (~6 months/year in Canada). Actual savings depend on your heating setup and climate.
Where to Buy the Antminer T21
D-Central Technologies
CanadaBitcoin Mining Hackers since 2016. Ships from Laval, Quebec.
Voir le produitASIC Miner Market
United StatesWide selection of new and used ASIC miners. US-based shipping.
MagasinerMinersDeals
United StatesCompetitive prices on new ASIC miners with coupon codes.
MagasinerFull Specifications
| Model | Antminer T21 |
| Model Number | T21 |
| Manufacturer | Bitmain |
| Algorithme | SHA-256 |
| Coins Mined | Bitcoin (BTC) |
| Taux de hachage | 190 TH/s |
| Consommation électrique | 3,610 W |
| Efficiency | 19 J/TH |
| Niveau de bruit | 75 dB |
| Chip Model | BM1368 |
| Chip Count | 132 |
| Cooling | Air |
| Voltage Range | 200-240V AC |
| Operating Temperature | 5-40°C |
| Dimensions | 400x195x290 |
| Weight | 14.6 |
| Interface | Ethernet |
| BTU Output | 12317.3 BTU/hr |
| Equivalent Heater | Equal to a 3,610W space heater |
| Daily Power Cost | $6.06/day |
| Monthly Power Cost | $181.94/mo |
| Circuit Requirement | 240V circuit required |
| Release Date | 2023-11-01 |
| MSRP | $4,200.00 |
| Status | Active |
Home Mining Assessment
Budget alternative to S21 with slightly lower efficiency
The Antminer T21 is a SHA-256 cryptocurrency miner manufactured by Bitmain. It delivers a hashrate of 190 TH/s with a power consumption of 3610W, achieving an efficiency of 19 J/TH.
Built on the BM1368 ASIC chip, uses air cooling, operates at 75 dB noise level, weighs 14.6 kg, measures 400x195x290.
With a home mining score of 30/100, this miner is best suited for dedicated mining spaces for residential use. It produces 12317.3 BTU/h of heat output, making it effective for supplemental space heating.
View detailed specifications, real-time profitability calculations, and comparison data for the Antminer T21 in our comprehensive ASIC miner database.
Related Miners
Canaan Avalon A1566HA
Canaan Avalon A1566I
Bitmain Antminer S23e U2H
Bitcoin Space Heater S17 Edition
Codes d'erreur courants du Antminer T21
Codes d'erreur connus et guides de dépannage pour le Antminer T21. Cliquez sur une erreur pour des instructions de réparation étape par étape.
Frequently Asked Questions
Is the Antminer T21 profitable?
At $0.07/kWh, the Antminer T21 currently operates at a daily loss of $0.24. However, profitability can improve with lower electricity rates or rising BTC prices. If used as a space heater, the heating offset may make it economically viable.
Can I mine Bitcoin at home with the Antminer T21?
The Antminer T21 has a home mining score of 30/100. With 75 dB noise and 3,610W power draw, it may require a dedicated space like a garage, basement, or outdoor enclosure. Consider noise insulation and proper ventilation.
Can the Antminer T21 heat my home?
The Antminer T21 outputs approximately 12317.3 BTU/hr of heat. For reference, a typical space heater produces 5,000-5,500 BTU/hr. All electrical energy consumed by the miner is converted to heat, making it 100% efficient as a heater. D-Central offers Bitcoin Space Heater builds designed specifically for home heating integration.
Does D-Central repair the Antminer T21?
Yes, D-Central provides professional repair services for the Antminer T21. Our technicians have repaired 2,500+ miners since 2016. Services include hashboard repair, control board diagnostics, fan replacement, and full refurbishment. Ship your miner to our Laval, Quebec facility for diagnosis and repair.
What power supply does the Antminer T21 need?
The Antminer T21 draws 3,610W of power. You need a power supply rated for at least 3,971W with appropriate voltage (200-240V AC). D-Central stocks compatible power supplies in our shop. Always use a quality PSU from a reputable manufacturer to protect your investment.