Thermal engineering & cooling
Every container in our fleet is a purpose-built thermal system, not a retrofit. Our ASIC enclosures use Celdek evaporative cooling engineered around the specific heat load, airflow, and ambient humidity profile of each deployment site — validated through CFD simulation before a single unit ships.
Extreme-climate deployments demand more than standard HVAC math. In high-humidity conditions, condensation margins at the cooling pad outlet can narrow to fractions of a degree — a failure mode most cooling vendors don’t model for. We do. Our thermal engineering process includes site-specific environmental risk assessment across environmental risk categories, from seasonal humidity swings to dust loading, ensuring hardware stays within safe operating temperature year-round.
Select a part to see what it does. Air flows from the intake fans, through the heatsinks, to the exhaust fans.
Simplified model at real proportions (about 450 × 219 × 293 mm). The internal layout and chip count are indicative.
Hardware specifications
- Model
- Bitmain Antminer S21 Pro
- Algorithm
- SHA-256 (Bitcoin / BTC)
- Hashrate
- 234 TH/s (typical)
- Power consumption
- 3,510 W at the wall (25 °C)
- Power efficiency
- 15 J/TH
- AC input voltage
- 220–277 V AC
- AC input current
- 20 A
- AC input frequency
- 50–60 Hz
- Network connection
- RJ45 Ethernet 10/100M
- Dimensions (L × W × H)
- 450 × 219 × 293 mm
- Net weight
- 20 kg
- Noise
- 76 dBA at 25 °C
- Operating temperature
- −20 to 45 °C

Our cooling systems are stress-tested against worst-case seasonal humidity, not just nameplate specs — because a container that only works in dry conditions isn’t ready for deployment.


