Connection cable question

[n8cwr]

Hi all, I have a TT one dont have a clue which one I think its a 125 anyway the cable that came with it that connect to my computer works fine but, 2 weeks ago that computer went south. I purchased a new computer and it doesn't have a serial connection so now I cannot connect my TT to it. The only connections on this computer are USB. I cant find a USB cable on TT site so anyone know what I should do?
Thanks
n8cwr

 

[mvl]

Per my understanding every Tomtom uses a plain USB connector (at least at the computer end).

What is the model number on the bottom of the Tomtom?