Buffalo WZR-HP-G300NH2

Overview
"WZR-HP-G302HV2", "21514W302HV21A1 Rev: A0-2", "03000611122010A" are silkscreened on the board in the FCC photos. This device appears to be manufactured by Cameo.

The default SSID appears to be the wireless interface MAC address (no delimiters, upper case hex digits). The device probably uses AR9287 for the WiFi chip.

On the OpenWrt wiki
 * Revision A1A0 and WZR-HP-G302H A1A0 (Japanese variant) WZR-HP-G302H is Japanese market name for WZR-HP-G300NH2, and seems to have slightly different WiFi chip, Atheros AR9283-AL1A. "WZR-HP-G302HV2" and "21514W302HV21A2 Rev:A2" is silkscreened on the board.
 * Revision B0A0 (marketed as N300 HighPower Gigabit) WZR-300HP This board, marked "WZR-HP-G302HV2 Rev:A3", is nearly identical to the other revisions, and the same image appears to flash successfully.

Forum threads

 * JTAG a Buffalo WZR-HP-G300NH2? on UsbJtag forums