The other is sold at Apple Stores for $29.
Here are two USB to Ethernet adapters: One of them is sold on ebay for $3.85 AU ($3.99 US), including postage to Australia. Taking apart a very cheap USB to Ethernet adapter and pondering on the parts found inside. If you could not find the exact driver for your hardware device or you aren't sure which driver is right one, we have a program that will detect your hardware specifications and identify the correct driver for your needs.
To download the proper driver you should find the your device name and click the download link. Choose an appropriate driver from the list. Download free drivers for QF9700 USB2.0 To Fast Ethernet Adapter.