AirStation Nfiniti Wireless-N Dual Band Ethernet Converter, Access Point and Bridge WLAE-AG300N is a versatile wireless device that extends the capabilities of wireless networks by offering three operating modes for limitless flexibility.
I used two of these to convert an Ethernet WAN port on a router into a wireless connection. This allowed me to use a Sprint Overdrive device as the Internet provider for my network of Ethernet devices. It worked great. Not the easiest instructions but I was able to get it working by using the Ethernet converter Manager software that comes with the unit.