Do all or most computers have them? I'm not sure if I'll be able to upgrade my graphics card if I don't have them. I have a Dell Precision 670 if that helps.
Yes, all pcs have molex connectors and usually a few extra for extra peripherals like your graphics card too. And even if you don't have enough connectors a molex connector splitter can make you an extra one. But remember to check to see if your power supply can supply enough power to the graphics card too. Also some graphics cards don't even require a molex connector so you might be able to find on that doesn't need one if necessary.
yes most pcs' have a spare power lead with a connector and most cards come with an adapter so if its not the right one . theres generally 3 styles .
