Description Yeastar EX08 Expansion Card Mtech. The Yeastar EX08 Expansion Card is a versatile modular solution designed to expand the telephony capabilities of Yeastar S-Series IP PBX systems, specifically the Yeastar S100 and S300 models. This expansion card provides a flexible platform for adding up to 8 telephony ports, allowing businesses to customize their communication infrastructure according to their specific needs. The EX08 supports a wide range of modules, including FXO (O2) for analog line connections, FXS (S2) for analog devices like phones and fax machines, BRI (B2) for ISDN connections, and GSM/3G/4G modules for cellular integration. With the ability to install up to two modules, each offering 4 ports, the EX08 provides seamless scalability for growing…