Edimax BR-6428Gn

"1242-00000308-50Z" is silkscreened on the board in the FCC photos.

The FCC test report lists the following units as covered by this FCC ID..
 * BR-6428Gn
 * GR-428Gn
 * 3G-6408Gn
 * 3G-408Gn
 * 3G-6408n
 * LT-6408n

Some models have integral antennas... others have RP-SMA connectors.