BITMAIN ANTMINER S21 Imm Immersion Cooling Miner
Product Information
Specifications
- Model: S21 Imm.
- Version: 10
- Crypto Algorithm/Coins: SHA256 (BTC/BCH/BSV)
- Working Mode: NEM, HEM
- Typical Hashrate: 239 TH/s
- Power on Wall @30: 3824 Watts
- Power Efficiency on Wall @30: 16.0 J/TH
Product Usage Instructions
Setup
- Ensure power supply meets input voltage and frequency requirements.
- Connect the server to the network using RJ45 Ethernet cable.
- Place the server in a well-ventilated area with the specified dimensions.
Maintenance
- Clean the server regularly to prevent dust buildup.
- Monitor operating temperatures to ensure optimal performance.
- Check power consumption periodically for efficiency.
Troubleshooting
- If the hashrate drops significantly, check for network connectivity issues.
- If power consumption increases unexpectedly, inspect the power supply and connections.
Safety Precautions
- Avoid exposing the server to extreme temperatures or moisture.
- Do not attempt to disassemble or modify the server components.
- Consult a professional for any repairs or technical issues.
Frequently Asked Questions
Q: What should I do if the server does not power on?
A: Check the power supply connection and ensure it is receiving the correct voltage.
Q: How often should I clean the server?
A: It is recommended to clean the server every 1-2 months to maintain optimal performance.
Specification
| Product Glance | Value | |
| Model | S21 Imm. | |
| Version | 10 | |
| Crypto algorithm/coins | SHA256|BTC/BCH/BSV | |
| Working mode(1-1) | NEM | HEM |
| Typical hashrate, TH/s(1-2) | 239 | 301 |
| Power on wall @30℃(1-3), Watt(1-2) | 3824 | 5569 |
| Power efficiency on wall @30℃, J/TH(1-2) | 16.0 | 18.5 |
| Detailed Characteristics | Value | |
| Power supply | ||
| Phase | 3 | |
| Input voltage range, Volt(2-1) | 380~415 | |
| Input frequency range, Hz | 50~60 | |
| Input max current, Amp | 12 | |
| Hardware configuration | ||
| Networking connection mode | RJ45 Ethernet 10/100M | |
| Server size (Length*Width*Height, w/o package), mm | 293*236*364(2-2) | |
| Server size (Length*Width*Height, with package), mm | 600*390*450 | |
| Net weight, kg | 17.15 | |
| Gross weight, kg | 20.45 | |
| Environment requirements | ||
| Inlet oil temperature, °C | 30~55 | |
| Oil flow, ??/h | 1 | |
| Storage temperature, °C | -20~70 | |
Notes:
- (1-1) NEM: Normal Energy Mode; HEM: High Energy Mode.
- (1-2) The Hashrate value, Power on wall, and Power efficiency on wall are all typical value. The actual Hashrate value fluctuates by 3%, and the actual Power on wall and Power efficiency on wall fluctuate by 5%.
- (1-3) Inlet oil temperature.
- (2-1) Caution: Wrong input voltage may cause server damage.
- (2-2) The height includes a 44mm handle.
Perfermance Curve
Hashrate vs. Inlet Oil Temperature
J/T vs. Inlet Oil Temperature
Documents / Resources
 | BITMAIN ANTMINER S21 Imm Immersion Cooling Miner [pdf] User Manual S9, S21 Imm., ANTMINER S21 Imm Immersion Cooling Miner, ANTMINER S21 Imm, Immersion Cooling Miner, Cooling Miner, Miner |
 | BITMAIN ANTMINER S21 Imm Immersion Cooling Miner [pdf] User Manual S21 Imm., ANTMINER S21 Imm Immersion Cooling Miner, ANTMINER S21 Imm, Immersion Cooling Miner, Cooling Miner, Miner |