TP-LINK TL-WN751ND v1

150Mbps Wireless N PCI Adapter Product page Support page
 * 1x1 SISO
 * Single Band

"2052500291" and "Rev:1.0" is silkscreened on the board in the FCC photos.

This device uses a single-chip Atheros solution which, per TP-LINK, is AR9227.