ALFA Network AWPCI085A

"A C E 6 4 2" and "HIGH POWER 802.11a" is silkscreened on the board in the FCC photos.
 * The silkscreen font, blue PCB, and MAC label font (looks more or less the same as used by the original ALFA Network AWUS036H revision) seems to indicate this module was manufactured by JJPlus.

Tx power - 26dBm @ 6Mbps, 24dBm @ 54Mbps

copy of datasheet another copy of datasheet