NEC Aterm WR7800H

Support page (JP)

On allabout.co.jp
 * 00:0D:02 OUI (NEC)
 * WARPSTAR-XXXXXX-G SSID shown on label

"3028-000861" is silkscreened on the right side of the board. "R1.1" and "ID:28-000071" is silkscreened on the left side of the board. "RT400W-D82" is printed on a label attached to the bottom of the device.

On the DD-WRT forums (internal images)
 * The Flash is assumed to be a MX29LV320ATTC-90 based on the specifications and visible text on the chip..

On right.com.cn forums

WARPSTAR-XXXXXX-A is presumed to be the 5GHz default SSID.