Routers from STC (white device) and Mobily (black device and smaller white device). Function: These devices are used to provide internet connection in homes or offices through technologies like Fiber optics. Features: These devices typically offer high internet speeds, up to 500 Mbps or more depending on the subscribed package. Technology: They operate on the "Fiber to the Home" (FTTH) system, where data is transmitted via optical signals unaffected by weather conditions.