[mythtv-users] Hauppauge card clarification. Different 250's?

[mark]

I am purchasing 2 PVR-250 cards.  I am seeing some different part 
numbers though.

One here is called the Hauppauge WinTV 250. Part # 976.
Isnt the supported one part # 980?

I want to make sure I get the right 250.  What is the part number of 
the well supported one that I read about in these forums?
How can I identify the correct model #?

Thank you all.

Mark