Samsung R540-JA04 15.6-Inch Laptop (Silver) 2.53 GHz Intel Core i3-380M dual-core processor 4 GB of installed DDR3 RAM (upgradeable to 8 GB) 500 GB SATA hard drive, 8x SuperMulti DVDR/RW drive 15.6-inch HD widescreen LED-backlit display, Intel HD integrated graphics Microsoft Windows 7 Home Premium