VIA VT6656 WIFI Adapter. It connects via the USB header. It has a mounting bracket and antenna. These are very small. Good for mounting in low profile cases. I believe these came as an add-on to some of the Zotac mobo's. This came in handy for me because I was able to free up a USB port in the rear of the mobo by using the on board USB. You can grab the drivers from VIA's website.
I have two (2) available.
Asking $25 each, buyer pays shipping. Paypal would be best.
PM or email.