Proxim 8482-WD v2

Overview
"U58H035", "Rev:5A", "Kitty Hawk", "19.1554.01", and a date code of 0419 is silkscreened on the board in the FCC photos.
 * This same card is also sold by Cisco as the Cisco AIR-PI21AG-A-K9 v1.

aka 8482-FC