OCZ520ADJSLI or OCZ520ADJ, what's the difference?

That's what I want to know. ASAP, if possible. I've noticed the OCZ520ADJSLI seem to be priced a bit more than the OCZ520ADJ's. Are the SLI one's worth it? Is there a difference? Which do I get? Thank you

If they are both powerstream then they are the same unit internally. The SLI model has an extra PCIe connector lead for the SLI and that's it. Just the extra wire. The SLI probably has a blue fan, the original one probably green.