Gigabit WiFi Range Extenders for Wired Connections

The phrase may describe an extender with gigabit Ethernet or a high wireless class. Check the product's port and radio specifications separately.

No. Ethernet and wireless links are distinct; the WiFi backhaul, interference, client and internet service affect end-to-end speed.

It can help when connecting a wired device or using a wired access-point connection, assuming the rest of the network supports the desired link.

A wired port rating does not establish wireless throughput. A wireless hop may be affected by distance, signal quality and available radio capacity.