Bitmain
T21 Control board
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Antminer T21 Control Board is an optimized control unit specifically designed for the T21 miner. It enhances processing efficiency, providing improved data transfer between hardware components. The board is built with high-quality materials that improve heat resistance and reduce the risk of system failures. With an advanced power regulation system, it ensures smooth operation even under continuous mining workloads. The T21 control board integrates seamlessly with mining software, allowing for easy firmware updates and mining optimizations. It is an essential component for miners looking to maintain stable mining operations.
| Specification | Details |
| Model | Ctrl_C76 or Ctrl_C81 |
| Main Control Chip | Amlogic A113D |
| Compatibility | Antminer T21, S21 series |
| Memory | 1GB DDR3 |
| Storage | 8GB eMMC |
| Dimensions | Approx. 100 x 90 x 20 mm |
| Weight | Approximately 0.3 kg |
| Power Supply | 12V DC via 6-pin PCI-E connector |
| Cooling | Passive (relies on miner’s cooling system) |
| Connectivity | 1 x Ethernet RJ45 |
| Fan Connectors | 4 x 4-pin MOLEX headers |
| Hashboard Connectors | 4 x I/O headers |
| Firmware Support | Upgradeable via SD card slot |
| Installation | Plug-and-play; ensure firmware compatibility with specific miner model |
| Release Date | 2023 |