Arcadyan WN7511E 2-LF-MT

Overview
"141751120005JR01" is silkscreened on the board.

This is the wireless module for the VIZIO M220NV and M550NV HDTVs.
 * "WN7511E2-LF-MT" is printed on a label on the device.
 * 00:19:9D OUI (VIZIO)