OGFDRV is a drive unit,equivalent of the chassis of the system. It provides current to all the connected modules : potentiostats/galvanostats and/or impedance modules.
Up to 10 potentiostats if the total sum in ampere doesn't exceed 20 A. It can support as much impedance module OGFEIS as potentiostats.
Then you can obtain the multi-channel potentiostat that you need. Made by you, for you