STC fiber optic modem STC fiber optic router, model ZNID-GPON-2428B1-0ST. This is a router modem that works with GPON fiber optic technology to convert the fiber signal into wired and wireless internet within the home or office. Specifications: Supports GPON fiber optic connection. Built-in wireless router for distributing internet via Wi-Fi. Multiple LAN ports for connecting devices via cable. Supports high internet speeds depending on the service provider's package. Suitable for home use and small offices. Original device belonging to STC company. Device details (Serial Number and MAC Address) Contact the advertised number or the website