iPollo V1 Mini WiFi control board is used to replace iPollo V1 mini WiFi 260M / 280M / 300M / 400M miner faulty control board. The control board does not need to be connected to a network cable and is connected directly through Wifi to the normal operation of the miner. By replacing the faulty and inoperable control board, miners can quickly collect and process the data returned by the hash board so that the benefits can be calculated in a timely manner, thereby reducing downtime or failure losses caused by the control board. Due to different product batches, the appearance , which does not affect the use Colour:Black Material:PC Package Contents: 1x 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.