This Lenovo ThinkCentre M57 6075A5U Desktop PC comes with an Intel Core 2 Duo E6550 processor running at 2.33GHz. The 80GB SATA II hard drive has great speed and plenty of space to store your important files. The Lenovo ThinkCentre M57 6075A5U Desktop PC also has 1GB of DDR2-667 RAM standard and 3 slots available, and a DVD-ROM/CD-RW optical drive. It comes with state-of-the-art Intel GMA 3100 Graphics and is powered by a 280 watt power supply. And all these components run with stability thanks to Microsoft’s Windows Vista Business operating system. This Lenovo ThinkCentre M57 6075A5U Desktop PC is ready to work hard for your business.