sound blaster xfi help

[Hank Smith, and Seeing-eye dog Iona]

Hello how do I find out exacly what line of xfi card i actually have?
trying to figure out if I can run it on windows 8.1 or windows10 I know 
from what research I can find only a certain soundblaster xfi will work 
on 8.1 and 10

thanks

Hank