To use a mesh network with the Deco X50-5G and the X50 Deco devices, you do not necessarily have to connect the X50-5G to the X50 Deco devices by cable. Instead, you can use the X50-5G as a central device and connect the X50 Deco devices to it wirelessly to extend the Wi-Fi network. The X50 Deco devices communicate with each other via the mesh network to ensure a seamless connection. So you don't need any additional cable connections between the devices.