Antminer S21 XP
Top-tier efficiency but requires industrial power and cooling infrastructure
Latest Generation Hardware
This is a newer generation of mining hardware using recent ASIC chip technology. Compare efficiency, hashrate, and power draw against older generations before choosing a deployment plan.
Lower J/TH means lower electricity cost per unit of hashrate. Compare efficiency alongside purchase cost, noise, voltage, firmware support, and current network difficulty.
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.
Calculateur de rentabilité
| Period | Revenue | Electricity Cost | Profit |
|---|---|---|---|
| Daily | $7.69 | $6.12 | $1.56 |
| Weekly | $53.81 | $42.87 | $10.95 |
| Monthly | $230.63 | $183.71 | $46.92 |
| Yearly | $2,806.02 | $2,235.11 | $570.91 |
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.
Buy from D-Central
In stock and ready to ship from Laval, Quebec.
Where to Buy the Antminer S21 XP
D-Central Technologies
CanadaBitcoin Mining Hackers since 2016. Ships from Laval, Quebec.
Full Specifications
| Model | Antminer S21 XP |
| Model Number | S21 XP |
| Manufacturer | Bitmain |
| Algorithme | SHA-256 |
| Coins Mined | Bitcoin (BTC) |
| Taux de hachage | 270 TH/s |
| Consommation électrique | 3,645 W |
| Efficiency | 13.5 J/TH |
| Niveau de bruit | 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 |
Custom Power Profiles
With custom firmware like DCENT_OS, this miner can be tuned across a wide range of power levels. Lower wattage improves efficiency and reduces electricity costs; higher wattage increases hashrate at the expense of efficiency.
| Wattage | Taux de hachage | Efficiency |
|---|---|---|
| 4,620 W | 385 TH/s | 12 J/TH |
| 4,800 W | 400 TH/s | 12 J/TH |
| 4,980 W | 415 TH/s | 12 J/TH |
| 5,148 W | 429 TH/s | 12 J/TH |
| 5,328 W | 444 TH/s | 12 J/TH |
| 5,508 W | 459 TH/s | 12 J/TH |
| 5,676 W | 473 TH/s | 12 J/TH |
| 5,943 W | 488 TH/s | 12.2 J/TH |
| 6,218 W | 503 TH/s | 12.4 J/TH |
| 6,539 W | 517 TH/s | 12.6 J/TH |
| 6,877 W | 532 TH/s | 12.9 J/TH |
| 7,227 W | 547 TH/s | 13.2 J/TH |
| 7,588 W | 562 TH/s | 13.5 J/TH |
Actual performance varies by individual unit silicon quality, ambient temperature, and cooling configuration. These operating points are achievable with custom tuning firmware such as DCENT_OS; values are calculated at runtime by the autotuner, not fixed presets.
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.
At 13.5 J/TH, the Antminer S21 XP sits in the current-generation efficiency tier, competitive with modern SHA-256 hardware (roughly 13-19 J/TH).
Its waste heat (around 12436.7 BTU/h) can be ducted into a room, turning money you would otherwise spend on heating into hashrate.
D-Central’s in-house technicians repair the Antminer S21 XP.
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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Frequently Asked Questions
What are the current mining economics for the Antminer S21 XP?
At $0.07/kWh electricity, the Antminer S21 XP currently shows an estimated $1.56 daily net result before pool fees and hardware cost. Results depend on your electricity rate and Bitcoin network conditions. Use the calculator above with your actual electricity rate.
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. 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 the miner and wiring.