OpenBCI/Bitalino/ADS1299EEG boards with 24/32/64/128/256 EEG channels?

OpenBCI EEG (up to 16 EEG channels): «No OpenBCI products are capable of 32 or 64 channels, even with “external trigger” idea. The master clock must be aligned exactly for all ADS1299 chips.Such an expandable product IS on our TODO list.» https://openbci.com/forum/index.php?p=/discussion/174/24-32-channel 2. Bitalino EEG (up to 18 EEG channels): “Per BITalino main board (aka …