Cerbo-S GX Basic Version - Limited Inputs No BMS Can Port The communication center allows you to always have perfect control over your system from wherever you are and maximizes its performance. Simply connect through our Victron Remote Management (VRM) portal, or access directly, using the separate GX Touch, an MFD, or our VictronConnect App thanks to its added Bluetooth capability. This latest addition to the GX range combines all the best of connectivity, redefining smart power solutions in every way.The Cerbo-S GX maximizes the performance of your system's components in real time and keeps them in perfect tune. With 3 VE.Direct ports, 3 USB ports, 4 digital inputs, and 2 relays allow you to expand control to a new level. aximizing systems performance was never this easy.