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WiFi Extender Cables: Ethernet, Backhaul and Antenna Leads

Most home extenders use Ethernet for a wired device or access point backhaul; detachable antenna cables are less common. Check the extender’s ports and manual before buying a cable.

A WiFi extender cable can mean an Ethernet cable that links the extender to a router or wired device, or an antenna lead for equipment with detachable aerials. For most plug-in home extenders, Ethernet is the relevant cable: an access point can use it as backhaul, while a range extender may use its port for a TV, console or computer.

WiFi Extender Cables: Ethernet, Backhaul and Antenna Leads

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Common questions

Questions before you buy

Does a WiFi extender need an Ethernet cable?

A wireless range extender can connect to the router over WiFi. Ethernet is needed when using a compatible access point mode or connecting a wired client, depending on the product.

What cable connects a WiFi extender to a router?

Use a standard Ethernet cable with compatible RJ45 connectors for a model that supports wired backhaul or access point mode. Follow the manufacturer’s instructions on which port and mode to use.

Can I use an antenna extension cable with a WiFi extender?

Only if the device has a detachable antenna and the cable connector and radio requirements match. Many plug-in extenders use internal or fixed antennas and cannot accept an external antenna lead.

Will an Ethernet cable improve extender speed?

A wired backhaul can avoid the wireless link between router and extender when the model supports it. The result still depends on port speed, cable quality, network equipment and internet service.