Dell OptiPlex 990 SFF/Core i5-2400 @ 3.1 GHz/8GB DDR3/500GB HDD/DVD-RW/No OS

Model: Dell OptiPlex 990 SFF - Small Form Factor
Operating System Info: NO OPERATING SYSTEM. THIS COMPUTER COMES WITHOUT THE OPERATING SYSTEM. The buyer will need to purchase and install his or her own Windows OS.
Chipset: Intel Q67 Express Chipset
Processor: Core i5-2400 @ 3.1 GHz
Memory Installed: 8 GB DDR3
Memory Supported: Up to four DIMM slots; Non-ECC dual-channel 1333MHz DDR3 SDRAM; up to 16GB
Hard Drive: 500GB
Optical Drive: DVD-R/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