that is a great deal 200 dls for 4 gtx 680 the best you can do, it' s buy it and resell it and bought a new graphics cards any top one of the brand you like it more. It' s a waste of time, money 4 sli. Not all games support it and not all the developers are interested on doing it. So better go for high end graphics cards. Also note why this person is selling these cards so cheap, maybe were overclocked a lot and have less lifetime that you think, keep in mine also if you bought it for resell it.