I'm looking into buying a used iSight. Apple came out with a few versions, so I just want to make sure which model I'm buying. The seller no longer has the box, but did provide the serial number. I've looked at this page Apple's Support page (https://selfsolve.apple.com/GetWarranty.do) without any luck. I need the info MxxxxxLL/A, or something along those lines. Thanks for the help.