how do i know???

[frank84]

I am using

Leadtek 6600GT Extreme Edition.

 

[Insidious]

If it is, it would have two connectors for monitors on it (commonly one VGA port and one DVI port which you can convert to VGA with the included adapter plug)

-Sid

Or you could ger really daring and RTFM

 

[Ronin]

Or it could have 2 DVI.

Either way, if there are 2 inputs on the back (aside from S-Video, although if you have a monitor such as an LCD with a S-Video input, that would work) of the card, it will support multiple monitors.