What should you do when your iPollo V1 mini miner fails to work correctly after running for a long time? It may be that the control board is faulty, causing the entire machine not to work properly. The iPollo V1 mini miner control board is mainly used to collect and process hash board data. If it is damaged, the data not be collected smoothly, thus affecting the regular income of the miners. If the control board is found to be faulty, miners are advised to replace it immediately to that the miners can quickly resume operation and resume normal profits. Color: As Shown Material: PCB Package Contents: 1 x Control Board Only the above package content, other products are not included. 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.