Comcast High-Speed 2go Quick Start Manual & Device User Manual page 4

Here's your new Comcast 4G Mobile Broadband device!
This device is for use with your Comcast High-Speed 2go Mobile
Broadband service. It is a USB modem that gives you the ability to
access Comcast's Mobile 4G Service.
If you have not yet signed up for Comcast High-Speed 2go,
please call 1-800-COMCAST (1.800.266.2278) or go to
comcast.com/highspeed2go to establish service before installation.