XPS 8940, recording will not recognize Universal Audio Interface

Hi,

I recently purchased this XPS 8940 tower for recording. I was online with a Dell rep and told him that I needed a Thunderbolt port to hook all of my interfaces up. He informed me that there was indeed Thunderbolt on this particular tower. 

Now that I have read through this forum some It is looking like this particular model does NOT have Thunderbolt and, it also looks like there's no way to add it.

I just wanted to confirm that this was actually the case before I tried to find another device. 

Thanks...B.