Xiaomi routers compatible with fiber optic internet do not typically include a fiber optic cable; you usually need to connect the router to an ISP-provided ONT using an Ethernet cable.

Fiber Compatibility

Certain Xiaomi routers, such as the Be5000 and Mi Router 4A Gigabit Edition, are fully compatible with fiber optic internet. The Be5000 supports 2.5Gbps WAN connections, allowing it to handle high-speed fiber-to-the-home (FTTH) services without additional media converters, while the Mi Router 4A Gigabit Edition supports gigabit WAN speeds suitable for fiber plans over 100 Mbps . These routers feature dedicated WAN ports designed to interface with fiber internet, but they rely on the Optical Network Terminal (ONT) provided by your ISP to convert the optical signal into an Ethernet signal .

Cable Requirements

To connect a Xiaomi router to a fiber internet service, the typical setup involves:

1. Fiber optic cable from the wall outlet to the ONT – This cable is usually provided by your ISP and has specialized connectors (SC/APC or SC/UPC) for single-mode fiber .
2. Ethernet cable from the ONT to the router's WAN port – This is the cable that connects the Xiaomi router to the converted fiber signal. Most Xiaomi routers do not include the fiber optic cable itself; they include standard Ethernet cables for WAN/LAN connections .

Practical Implications

• If you are subscribing to fiber internet, your ISP will typically provide the ONT and fiber optic cable. The Xiaomi router will then connect via Ethernet to the ONT.
• No additional fiber optic cable is usually included in the Xiaomi router box, so you should not expect to plug the fiber line directly into the router without the ONT.
• Routers like the Be5000 simplify the setup by supporting high-speed WAN ports, eliminating the need for extra converters or switches . In summary, while Xiaomi routers are fiber-ready and capable of handling high-speed fiber connections, the fiber optic cable itself is generally not included; you will need the ISP-provided ONT and Ethernet cable to complete the connection.