BITMAIN T21 Bitcoin Miner Instruction Manual
- September 24, 2024
- BITMAIN
Table of Contents
- T21 Bitcoin Miner
- Specifications
- Detailed Characteristics
- Performance Curve
- Product Usage Instructions
- Setup and Installation:
- Maintenance:
- Troubleshooting:
- Q: How can I reset the miner to factory settings?
- Q: What should I do if the miner is overheating?
- Q: How often should I replace the miner’s filters?
T21 Bitcoin Miner
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Specifications
| Product Glance | Value |
|---|---|
| Model | T21 |
| Version | 10 |
| Crypto algorithm/coins | SHA256 |
| Working mode | NEM |
| Typical hashrate, TH/s | 190 – 233 |
| Power on wall @30, Watt | 3610 – 5126 |
| Power efficiency on wall @30, J/TH | 19.0 – 22.0 |
Detailed Characteristics
Performance Curve
Product Usage Instructions
Setup and Installation:
-
Place the T21 miner on a flat, stable surface.
-
Connect the power supply to the miner following the specified
voltage and current requirements. -
Connect the miner to the network using an RJ45 Ethernet
cable. -
Ensure proper ventilation around the miner to prevent
overheating.
Maintenance:
Regularly clean the miner and ensure no dust buildup on the fans
or vents.
Monitor the miner’s performance and temperature regularly to
ensure optimal operation.
Troubleshooting:
If the miner is not functioning correctly, refer to the
troubleshooting section of the user manual for guidance on common
issues and solutions.
FAQ (Frequently Asked Questions)
Q: How can I reset the miner to factory settings?
A: To reset the miner to factory settings, locate the reset
button on the device and hold it down for at least 10 seconds until
the lights indicate a reset.
Q: What should I do if the miner is overheating?
A: If the miner is overheating, first ensure proper ventilation.
If the issue persists, check for dust buildup and clean the miner’s
fans and vents. If the problem continues, contact customer support
for further assistance.
Q: How often should I replace the miner’s filters?
A: Filters should be checked regularly for dust accumulation and
replaced as needed to maintain proper airflow and prevent
overheating.
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Value
Power supply
Phase: 3
Input voltage: 380~415 Volt
Input frequency range: 50~60 Hz
Maximum input current: 12 Amp
Hardware configuration
Network connection mode: RJ45 Ethernet 10/100M
Server size (LengthWidthHeight, w/o package): 400212290
mm
Server size (LengthWidthHeight, with package): 570316430
mm
Net weight: 17.0 kg
Gross weight: 19.1 kg
Noise @30: 76 dBA
Environment requirements
Operation temperature: 0~45°C
Storage temperature: -20~70°C
Operation humidity (no condensation): 10%~90% RH
Operation altitude: Up to 2000m
T21
Product Manual
Jul. 2024
BITMAIN TECHNOLOGIES INC. www.bitmain.com
1. Specification
Product Glance
Model Version Crypto algorithm/coins Working mode(1-1) Typical hashrate,
TH/s(1-2) Power on wall @30(1-3), Watt(1-2) Power efficiency on wall @30,
J/TH(1-2)
T21 Product Manual
Value
T21
10
SHA256 | BTC/BCH/BSV
NEM
HEM
190
233
3610
5126
19.0
22.0
Detailed Characteristics
Value
Power supply
Phase Input voltage(2-1), Volt Input frequency range, Hz Maximum input
current, Amp
Hardware configuration
Network connection mode Server size (LengthWidthHeight, w/o package), mm
Server size (LengthWidthHeight, with package), mm Net weight, kg Gross
weight, kg Noise(2-2) @30, dBA
Environment requirements
Operation temperature, Storage temperature, Operation humidity(no
condensation), RH Operation altitude(2-3), m
3 380~415
50~60 12
RJ45 Ethernet 10/100M 400212290 570316430 17.0 19.1 76
0~45 -20~70 10%~90% 2000
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 values, The
actual Hashrate value fluctuates by ±3%, and the actual Power on wall and
Power efficiency on wall fluctuate by ±5%. (1-3) Inlet air temperature. (2-1)
Caution: Wrong input voltage may probably cause server damaged. (2-2) The
noise is loudest when the fan is under maximum RPM(rotation per minute).
(2-3) When the server is used at an altitude from 900m to 2000m, the highest
operating temperature decreases by 1 for every increase of 300m.
-2-
2. Performance Curve
(1) Hashrate vs. Ambient Temperature
T21 Product Manual
Hashrate 300(TH/s)
250 233
200
150 190
100
50
0
0
5
T21 Hashrate
NEM
233
233 233
214 214 214
HEM
190
190
190
190 190 190
10 15
20 25
30
35
40
Ambient Temperature ()
45 50
(2) J/T vs. Ambient Temperature
J/T
30.0
25.0 22.0 20.0
19.0 15.0
10.0
5.0
0.0
0
5
T21 J/T
NEM
HEM
22.0
22.0 22.0 22.0 22.0 22.0
19.0
19.0 19.0 19.0
10 15
20
25 30
35
40
45 50
Ambient Temperature ()
-3-
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