Motorola MG7550


 * • 1300Mbps - 3SS 5GHz 802.11ac (80MHz chan.),
 * • 600Mbps - 3SS 2.4GHz 802.11n (40MHz chan., 256QAM) = AC1900 class

Overview
16x4 DOCSIS 3.0 cable modem
 * 16 downstream channels for speeds up to 686 Mbps
 * 4 upstream channels for speeds up to 123 Mbps

"D9PTK" FBGA code on the RAM corresponds to the MT41K128M16JT-125:K

This datasheet lists the core chipset as a Broadcom BCM33843G.