Avalon board AUC3 converter card 721 740 741 841 921 series Canaan
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Avalon AUC3 Converter Card for 721, 740, 741, 841, 921 Series | Canaan USB Adapter
The Avalon AUC3 (Avalon USB Converter 3) is an adapter card that connects up to 5 Avalon miners from the 7, 8, or 9 series to a Raspberry Pi controller. This includes the Avalon 721, 740, 741, 841, 921, and related models manufactured by Canaan. By connecting a single Avalon controller to up to 4 AUC3 devices, you can manage 20 Avalon miners simultaneously — up to 220 TH/s of combined hash rate from a single management interface.
AUC3 Converter: Multi-Miner Management for Avalon 7/8/9 Series
The AUC3 bridges the communication gap between the Raspberry Pi-based Avalon controller and the miners themselves. Each AUC3 unit connects to the controller via USB and provides 5 downstream miner connections. For mining farms running Avalon hardware, this architecture simplifies management: one controller with 4 AUC3 units replaces 20 individual management interfaces. The AUC3 handles the data translation between the controller's CGMiner/BFGMiner software and the Avalon hashboard firmware.
Avalon AUC3 Specifications
| Specification | Detail |
|---|---|
| Product | AUC3 Adapter Card (USB Converter) |
| Manufacturer | Canaan |
| Compatible Series | Avalon 7 (721, 740, 741), 8 (841), 9 (921) series |
| Miners per AUC3 | Up to 5 |
| AUC3 per Controller | Up to 4 (managing 20 miners total) |
| Max Combined Hash Rate | Up to 220 TH/s (with 20 miners) |
| Controller Interface | USB to Raspberry Pi |
Avalon Mining Farm Architecture with AUC3 Converters
For large-scale Avalon deployments, the recommended architecture is: 1 Raspberry Pi controller → 4 AUC3 converter cards → 20 Avalon miners. This reduces network overhead and centralizes management. Each AUC3 requires its own USB port on the controller. Ensure your Raspberry Pi has sufficient USB ports (or use a USB hub) when scaling beyond 2 AUC3 units. For the control boards inside each miner, see the Avalon Control Board for 1066pro/1166pro/1126/1246 and the Avalon Control Board for A1566/A1366/A1346 series. Keep miners running cool with the Avalon 120mm 12V 9A Replacement Fan.
Why Buy Avalon AUC3 Converters from LYS?
We stock AUC3 cards alongside the full range of Avalon control boards, fans, and PSUs. DDP shipping on every order — no customs delays. Contact us for volume pricing when outfitting Avalon mining farms.
Next Step: Browse Avalon Q PSU options or contact our support team at contact@lys-sz.com or via WhatsApp for Avalon infrastructure planning assistance.
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