Do I need a new modem? 1.5 Gbps upgrade

[hansm0leman]

I just upgraded to 1.5 Gbps internet, and I am wondering if the modem I have is adequate to give me the full speed. The person who upgraded me said it can get the full speed but I'm not sure that is true. I don't believe the ports on this modem support 2.5 gb ethernet.

If I do need a new modem, how do I go about getting one? Best to call in?

I have what I believe is the XB6 - it's the black one here: 

[hansm0leman · Accepted solution]

I found my answer. I need a new modem, and it requires a tech visit.