SIDE320 is an expansion module and requires FCU320 to operate.
It connects directly to the FCU by a flat cable.
Each SIDE320 panel connects directly to FCU320 by flat cable together with the other modules. The FCU320 takes on charge all the connected modules, dealing the communication between them.
For this reason SIDE320 does not require further driver installations or software configurations and does not waste USB ports on the pc.