These products seem to be currently on stock from Elecrow: https://www.elecrow.com/jneeg.html jneeg: https://www.elecrow.com/ardeeg.html ardEEG There is also a forum section for these devices: https://pieeg.com/forum-pieeg-low-cost-brain-computer-interface These new EEG modules remind us a bit of the OpenBCI modules which are sold on eBay and Aliexpress, which came onto the market in 2021, as mentioned here: https://www.eevblog.com/forum/testgear/how-to-solve-the-ti-ads1299-eeg-demo-kit-is-not-save-for-humans-problem/100 But …