What gateway with I receive

The concern is not "Community Knowledge Base" related............ Topic moved here to the proper help section, and for greater exposure to Comcast corporate employees (The Digital Care Team) for assistance. 

@user_rrwwsv Thanks for adding a post to the community. If you have a coax connection you'll get our amazing XB8 Advanced Gateway. Check out all the details here https://www.xfinity.com/support/articles/broadband-gateways-userguides for the gateways, and let us know if you need help upgrading the speeds.