The following information could be found on this product page: https://www.aliexpress.com/item/1005005954996622.html?gatewayAdapt=glo2deu Disclaimer: DIY statement: Issues of the OpenBCI made in China products sold on Aliexpress But what is necessary is to know which OpenBCI modules work properly and which have issues. https://petergamma.org/tag/openbci_made_in_china We conclude from the information in this documentation, that this is not a …