see https://docs.openbci.com/Ganglion/GanglionSDK for more information about the commands.
4
An Integer that is different for each board. For Ganglion boards it is 200 (Hz).
A Float scaling factor used internally to convert from 24bit to microvolt (uV). This factor differ for each board.
A Float scaling factor used internally to convert from 16bit to -4 to 4 g. This factor differ for each board.
The Ganglion with USB Dongle (GanglionSerial) cannot and will not stream data over 200SPS. With the WifiShield all rates are possible (GanglionWifi).
see GanglionSerial or GanglionWifi help files.