CastleNet RTL8188CTV

Overview
for the original filing made 09/05/2012 "8188_1v3" is silkscreened on the front of the board.
 * A sticker with "RTL8188CTV-SC3" and "WLAN MAC: 001C7B77F58E" on it is affixed to the back.

for the FCC C2PC made 05/02/2013

"8188_1v3" is silkscreened on the front of the board. Checkboxes with "RTL8188CTV-EIXS" and "RTL8188CUS-EIXS" are silkscreened on the back of the board.
 * A sticker with "RTL8188CTV-SC3X" and "WLAN MAC: 001C7B77F6D2" on it is affixed to the back.

The device is presumed to indeed use a 00:1C:7B (CastleNet) OUI.