Your growing enterprise shouldn't hesitate to use better tools than your competition. This entry-level PC offers you security, stability, manageability and speed. Above all, it offers you confidence. Number of Processors Supported: 1, Number of Processors Installed: 1, Processor Manufacturer: Intel, Processor Type: Pentium, Processor Model: G630, Processor Core: Dual-core (2 Core), Processor Speed: 2.70 GHz, 64-bit Processing: Yes, Chipset Manufacturer: AMD, Chipset Model: H61 Express, Standard Memory: 2 GB, Maximum Memory: 8 GB, Memory Technology: DDR3 SDRAM, Memory Standard: DDR3-1333/PC3-10600, Memory Card Reader: No, Total Hard Drive Capacity: 320 GB, Optical Drive Type: DVD-Writer, Optical Media Supported: DVD-RAM/±R/±RW, Dual-Layer Media Supported: Yes, Controller Type: Serial ATA/300, Graphics Controller Manufacturer: Intel, Graphics Controller Model: Graphics Media Accelerator HD, Graphics Memory Accessibility: Shared, Ethernet Technology: Gigabit Ethernet, Number of Total Expansion Bays: 3, Number of Total Expansion Slots: 3, DVI: Yes, Operating System: Genuine Windows 7 Professional, Operating System Architecture: 64-bit. Limited quantity. Manufacturer warranty. This picture Is for illustration purposes only, actual product may be different.