Features: The CB4V10 Control Board is for seamlessly compatibility for M20S, M21S, M30S, M31S miners, optimizing mining efficiency and reducing energy consumption to maximizes returns. Featuring improved circuit structure, this control board ensures enhances stability and durability through quality electronic components and intuitively interfaces for easy installation and setups. Suiatble for individual miners and investors look to boosting their mining efficiency, as well as DIY hardware enthusiasts who enjoy customizing their mining rigs with advanced technology. Perfect for homes base mining setups or small workshops, and scalable enough for enterprises level minings farm requiring efficient management of multiple unit. With its intelligent temperature control systems and support for online firmware upgrades, the Control Board offer future proof solution for large scale mining operations, ensuring long terms performances and adaptability Specifications: Component:PCB Size:Approx.10x7cm/3.94x2.76inch Suitable for M20S M21S M30S M31S Miners Package Includes: 1pc Control Board note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.