I'm not sure what you mean. This is just an USB Extension cable.
If you would normally plug an USB device into your PC, you can plug this into your PC and the device on the other end of this. It is useful if your USB ports on the PC are inconveniently placed. If you have an usb wifi adaptor, this may help in getting the adapter out in the open.
Here is the Listia explanation: http://www.listia.com/about
Basically, think of the site as eBay, but you are using Listia points instead of cash. You can get points by auctioning off stuff you don't need and use points for stuff you do need.
This auction will be over on Friday night. If you win, you'll be able to send me a message from this page with your shipping address and I'll mail it out as soon as I get a chance. (It will probably be on Monday.)