Selling Netgear N600 WiFi cable modem and WiFi router (C3700).
It supports DOCSIS 3.0 and up to 300 Mb/s; it was used with ComCast Internet provider.
The WiFi is 802.11n dual band, 2.4 and 5 GHz.
It also has two 1 Gb/s Ethernet connections.
The box includes the modem/router and its power supply.

Vendor info: https://www.netgear.com/home/wifi/modem-routers/c3700