Model :Dell OptiPlex 990 SFF - Small Form Factor Operating System Info :Microsoft Windows 7 Home Premium 32bit Chipset :Intel Q67 Express Chipset Processor :Core i5-2400 @ 3.1 GHz Memory Installed :2 GB DDR3 Memory Supported :Up to four DIMM slots; Non-ECC dual-channel 1333MHz DDR3 SDRAM; up to 16GB Hard Drive :240GB SSD Optical Drive :DVD-RW Graphics :Integrated Intel HD Graphics 2000 Audio :Realtek ALC269Q High Definition Audio Networking :Integrated Intel 82579LM Ethernet LAN 10/100/1000 Chasis : Number of Bays :1 internal 3.5 in; 1 external 5.25 in (slimline) Expansion Slots :1 half height PCIe x16; 1 half height PCIe x16 (wired x 4) Ports :10 External USB 2.0 ports; 1 Serial; 1 RJ-45; 1 VGA; 1 DisplayPort; 2 PS/2; 2 Line-in (stereo/microphone); 2 Line-out (headphone/speaker) Power Supply Unit :Standard 240W PSU Dimensions : 3.70" high x 11.40" wide x 12.30" deep System Weight : 12.60 lbs Warranty : 365 days

Model :Dell OptiPlex 990 SFF - Small Form Factor Operating System Info :Microsoft Windows 7 Home Premium 32bit Chipset :Intel Q67 Express Chipset Processor :Core i5-2400 @ 3.1 GHz Memory Installed :2 GB DDR3 Memory Supported :Up to four DIMM slots; Non-ECC dual-channel 1333MHz DDR3 SDRAM; up to 16GB Hard Drive :240GB SSD Optical Drive :DVD-RW Graphics :Integrated Intel HD Graphics 2000 Audio :Realtek ALC269Q High Definition Audio Networking :Integrated Intel 8