This is the one I got; from amazon and it works fine after a small configuration in your device manager.

If you're interested the steps are as follows:

In Windows 7, this is the process to installing the gaming receiver:

Go to Control Panel>Hardware and Sound>Devices and Printers

Right click on "unspecified Device"

Click on "Properties"

Click on the "Hardware" tab

Click on "Update Driver"

Click on "Browse my computer for driver software"

Click on "Let me pick from a list..."

Select the Microsoft Controller. (it might show up as Microsoft Common Controller For Windows Class)

Then select the Xbox 360 Wireless receiver for Windows

After that it will work for you. Hope this helps!