TP-LINK TL-WN851ND

300Mbps Wireless N PCI Adapter Product page

"2052500279" and "Rev:1.0" is silkscreened on the board in the FCC photos.

The TP-LINK drivers reference two devices...
 * 168c:002d (168c:0300) (appears to be used) 
 * TP-LINK 300Mbps Wireless N Adapter
 * 168c:002d (168c:0301)
 * TP-LINK 150Mbps Wireless N Adapter
 * This is the PCI ID for the TP-LINK TL-WN751ND.

Per TP-LINK, this device uses AR9227.

Possible F4:EC:38 OUI