HP ProBook 6570b (C4R43US#ABA) Notebook i5 3320M (2.60GHz) 4GB Memory 320GB HDD Intel HD Graphics 4000 15.6" Windows 7 Professional 64-Bit Intel Core i5 3320M (2.60GHz) 4GB Memory 320GB HDD Intel HD Graphics 4000 Windows 7 Professional 64-Bit DVD+/-RW