D-Link DSL-2640B rev B2

Overview
"PCB MADE IN CHINA" and "REV:1.03" is silkscreened on the top of the board.

This device is presumed to use BCM6348S (BCM6348SKFBG).
 * Useless thread on the DD-WRT forums about the device
 * Info on the device on pudeev's LiveJournal
 * Entry on modem-help about the device
 * The noted FCC ID covers models AM6XXXVI-PD1, AM6XXXVI-XXX, 6218-I3-XXX, 6218-I4-XXX (where XXX = 0~9 / A~Z)