Mining Machine Computing Power Control Board Adapter Card Suitable For Whatsminer M20 M30 M21S Three-In-One Cable Board _x000D_ Type: Mining Machine Computing Power Control Board Adapter card_x000D_ Model Number: M20 M30 M21S_x000D_ Used for Whatsminer connector between dashboard and control board for miner M20 series M30 series_x000D_ _x000D_ Colour: green_x000D_ Material: PCB+plastic+metal_x000D_ _x000D_ Package Contents:_x000D_ 1 x Adapter Board_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm._x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_