Is it possible to change the plug on a usb wifi adapter to plug into an ethernet port and still work?

No. Ethernet and USB interfaces are not compatible. Your best options would be to use an expansion card to add functionality (a USB or wifi card), a USB hub (if USB ports exist but are in use), or use a wireless bridge.

If cost is a concern, a local PC component recycler or Craigslist can be a good resource for an inexpensive solution. Last time I needed a wireless bridge, I used an inexpensive router purchased from a local recycler with dd-wrt installed.

My suggestion is to buy a USB card/adapter for the computer - probably cheaper than the wireless bridge, and more useful, as you can use the other ports for other devices.

The short answer is, no, you can not. The long answer is, if you have to ask, no, you can not. It would require a major rework of the device including bypassing the USB interface and adding an ethernet interface then reworking the operating software on the device.In the end, the time, money, and effort to do it will likely be worth far more than just buying a small wireless router or access point to play bridge.

Knowing how it could be done myself and having years of experience working with USB, ethernet, and programming, I wouldn't even attempt it without having a couple of weeks free to play with it. Enjoy, Ray.

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