PC Wi-Fi Boosters: Extenders and Options for Better Coverage

Yes. A PC can connect wirelessly to the extended network, or by Ethernet to an extender that has a port. Check the extender manual for its supported connection modes.

An extender can help when the room has poor coverage; a USB or PCIe adapter can help when the computer’s wireless hardware is the weak point. Diagnose which problem you have first.

Some models include an Ethernet port for wired clients. That does not necessarily mean the extender has a wired backhaul to the router.

It may improve connection reliability if weak signal is the bottleneck. Internet speed, latency and congestion still depend on the router link, broadband service and network conditions.