Multifunction Gateway along with Ethernet Switches and GPS Clock are key components of any Digital Substation. In this technical session GE will present what are key features of a Multifunction Gateway in order to act as Data concentrator for both Operational and Non-Operational Data with serving the Data upstream to Master stations, Local HMI, Time Synch, Electronic Access Point (EAP). We will also cover some of the key features of Modern Switches and GPS clock at the substations and Cyber Security features for all presented devices.