Apple MacBook Pro 15.4" Laptop - 500 GB HARDRIVE - i7 QUAD-CORE - MC721LL/A Intel Core i7 Processor 2GHz 4GB SDRAM RAM 500GB 5400RPM Hard Drive 15.4-Inch Screen Mac OS X v10.7 Lion, 7 hours Battery Life Ships in Certified Frustration-Free Packaging MacBook Pro version 10.9.5