Avalon A841 control board Used

We sell second-hand Avalon A841 control boards to the world at a reasonable price and higher quality, which can be used to mine Bitcoin. It is an application specific integrated circuit and uses the SHA-256 hash algorithm. All products can operate normally, with quality assurance and sufficient supply.

Please note: Avalon A841 and A851 control boards are universal. Please refer to this article to upgrade the firmware of the control board: