Antminer S21 XP
Top-tier efficiency but requires industrial power and cooling infrastructure
Latest Generation Hardware
This is the newest generation of mining hardware, featuring the most advanced ASIC chips available. Latest-gen miners deliver the highest efficiency (lowest J/TH), the best profitability per watt, and the longest profitable lifespan.
Lower J/TH means lower operating costs and more profit per hash. Cutting-edge silicon technology means this miner will remain competitive longer than older generations as network difficulty rises.
Professional-Grade Miner
This miner draws 3,645W 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.
Profitability Calculator
| Period | Revenue | Electricity Cost | Profit |
|---|---|---|---|
| Daily | $8.35 | $6.12 | $2.23 |
| Weekly | $58.48 | $42.87 | $15.62 |
| Monthly | $250.63 | $183.71 | $66.92 |
| Yearly | $3,049.37 | $2,235.11 | $814.25 |
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 S21 XP
D-Central Technologies
CanadaBitcoin Mining Hackers since 2016. Ships from Laval, Quebec.
View ProductASIC Miner Market
United StatesWide selection of new and used ASIC miners. US-based shipping.
Shop NowFull Specifications
| Model | Antminer S21 XP |
| Model Number | S21 XP |
| Manufacturer | Bitmain |
| Algorithm | SHA-256 |
| Coins Mined | Bitcoin (BTC) |
| Hashrate | 270 TH/s |
| Power Consumption | 3,645 W |
| Efficiency | 13.5 J/TH |
| Noise Level | 75 dB |
| Chip Model | BM1370 |
| Chip Count | 156 |
| Cooling | Air |
| Voltage Range | 200-240V AC |
| Operating Temperature | 5-40°C |
| Dimensions | 400x195x290 |
| Weight | 15.4 |
| Interface | Ethernet |
| BTU Output | 12436.7 BTU/hr |
| Equivalent Heater | Equal to a 3,645W space heater |
| Daily Power Cost | $6.12/day |
| Monthly Power Cost | $183.71/mo |
| Circuit Requirement | 240V circuit required |
| Release Date | 2024-08-01 |
| MSRP | $8,200.00 |
| Status | Active |
Home Mining Assessment
Top-tier efficiency but requires industrial power and cooling infrastructure
The Antminer S21 XP is a SHA-256 cryptocurrency miner manufactured by Bitmain. It delivers a hashrate of 270 TH/s with a power consumption of 3645W, achieving an efficiency of 13.5 J/TH.
Built on the BM1370 ASIC chip, uses air cooling, operates at 75 dB noise level, weighs 15.4 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 12436.7 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 S21 XP in our comprehensive ASIC miner database.
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Compare the Antminer S21 XP
Frequently Asked Questions
Is the Antminer S21 XP profitable?
At $0.07/kWh electricity, the Antminer S21 XP generates approximately $2.23 in daily profit. Profitability depends on your electricity rate and Bitcoin network conditions. Use the calculator above with your actual electricity rate for personalized results.
Can I mine Bitcoin at home with the Antminer S21 XP?
The Antminer S21 XP has a home mining score of 30/100. With 75 dB noise and 3,645W power draw, it may require a dedicated space like a garage, basement, or outdoor enclosure. Consider noise insulation and proper ventilation.
Can the Antminer S21 XP heat my home?
The Antminer S21 XP outputs approximately 12436.7 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 S21 XP?
Yes, D-Central provides professional repair services for the Antminer S21 XP. 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 S21 XP need?
The Antminer S21 XP draws 3,645W of power. You need a power supply rated for at least 4,010W 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.