OPTI 790 MT CI5/3.1 4GB 500GB DVDR 3YRNBD W7P 64 Get advanced performance in a flexible design with the Dell OptiPlex 790 Desktop computer. This secure and easy-to-manage desktop can integrate seamlessly into virtually any office environment. Bring easy-to-implement security features, manageability and services to your organization with the Dell OptiPlex 790 Desktop computer. Your organization relies on stable, great-performing desktops to get work done each day. Help productivity soar with the advanced performance and flexible solutions of OptiPlex 790 Desktops. * MAIN SPECIFICATIONS Product Description Dell OptiPlex 790 - Core i5 2400 3.1 GHz Type Personal computer Form Factor Mini tower Dimensions (WxDxH) 6.9 in x 16.4 in x 14.2 in Weight 19.6 lbs Localization English / United States Processor 1 x Intel Core i5 2400 / 3.1 GHz ( Quad-Core ) Cache Memory 6 MB L2 cache Cache Per Processor 6 MB RAM 4 GB (installed) / 16 GB (max) - DDR3 SDRAM - non-ECC - 1333 MHz Storage Controller Serial ATA Hard Drive 1 x 500 GB - standard - Serial ATA-600 Optical Storage DVDRW Monitor None. Graphics Controller Intel HD Graphics 2000 Dynamic Video Memory Technology Audio Output Sound card Networking Network adapter - Ethernet, Fast Ethernet, Gigabit Ethernet Power AC 120/230 V ( 50/60 Hz ) OS Provided Microsoft Windows 7 Professional 64-bit Edition Microsoft Office Preloaded Includes a pre-loaded image of select Microsoft Office 2010 suites. Purchase an Office 2010 Product Key Card or disc to activate preloaded software on this PC. Environmental Standards ENERGY STAR Qualified , Blue Angel , EPEAT Gold Manufacturer Warranty 3 years warranty - on-site General Type Personal computer Recommended Use Small business, corporate business Product Form Factor Mini tower Built-in Devices Speaker Width 6.9 in Depth 16.4 in Height 14.2 in Weight 19.6 lbs Localization English / United States Processor Type Intel Core i5 2400 / 3.1 GHz Multi-Core Technology Quad-Core 64-bit Computing Yes Installed Qty 1 Max Supported Qty 1 Cache Memory Type L2 cache Installed Size 6 MB Cache Per Processor 6 MB Mainboard Chipset Type Intel Q65 Express RAM Installed Size 4 GB / 16 GB (max) Technology DDR3 SDRAM - non-ECC Memory Speed 1333 MHz Features Dual channel memory architecture Configuration Features 2 x 2 GB Storage Controller Type Serial ATA - integrated Storage Hard Drive 1 x 500 GB - standard - Serial ATA-600 - 7200 rpm - DataBurst Cache Optical Storage Type DVDRW Monitor Monitor Type None. Graphics Controller Type Integrated Graphics Processor / Vendor Intel HD Graphics 2000 Dynamic Video Memory Technology Digital Video Standard DisplayPort Audio Output Type Sound card - integrated Speaker(s) Dell Business Audio Speaker Input Device Type Mouse, keyboard Keyboard Keyboard Name Dell USB Entry Keyboard Interface USB Localization and Layout English Mouse Technology Optical Interface USB Networking Networking Network adapter - integrated Ethernet Controller(s) Intel 82579LM Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet Expansion / Connectivity Expansion Bays\ (total) / 1 (free) x front accessible - 5.25" 2 (total) / 2 (free) x internal - 2.5" 2 (total) / 1 (free) x internal - 3.5" Expansion Slot(s)[ (total) / 0 (free) x processor 4 (total) / 2 (free) x memory - DIMM 240-pin 1 (total) / 1 (free) x PCI Express x16/x4 - full-height 1 (total) / 1 (free) x PCI Express x16 - full-height 1 (total) / 1 (free) x PCI Express x1 - full-height 2 (total) / 2 (free) x PCI - full-height InterfacesΎ x Hi-Speed USB - 4 pin USB Type A ( 4 front, 6 rear ) 1 x serial - 9 pin D-Sub (DB-9) 1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45 1 x display / video - VGA - 15 pin HD D-Sub (HD-15) 1 x audio / video - DisplayPort - 20 pin DisplayPort 1 x microphone - input - mini-phone 3.5 mm ( 1 in front ) 1 x headphones - output - mini-phone stereo 3.5 mm ( 1 in front ) 1 x audio - line-in/microphone - mini-phone stereo 3.5 mm 1 x audio - line-out - mini-phone stereo 3.5 mm 1 x keyboard - generic - 6 pin mini-DIN (PS/2 style) 1 x mouse - generic - 6 pin mini-DIN (PS/2 style) Miscellaneous Features Security lock slot (cable lock sold separately), active Power Factor Correction (PFC) Compliant Standards RoHS, WEEE, TCO '05 Power Device Type Power supply Voltage Required AC 120/230 V ( 50/60 Hz ) Power Provided 265 Watt Operating System / Software OS Provided Microsoft Windows 7 Professional 64-bit Edition - English Microsoft Office Preloaded Includes a pre-loaded image of select Microsoft Office 2010 suites. Purchase an Office 2010 Product Key Card or disc to activate preloaded software on this PC. Software Cyberlink PowerDVD , Roxio Creator Environmental Standards EPEAT Compliant EPEAT Gold ENERGY STAR Qualified Yes Blue Angel Compliant Yes Manufacturer Warranty Service & Support 3 years warranty Service & Support Details Limited warranty - 3 years - on-site - response time: next business day Environmental Parameters Min Operating Temperature 50 F Max Operating Temperature 95 F Humidity Range Operating 20 - 80% (non-condensing)