Dell OptiPlex 755 MT/Core 2 Duo E4500 @ 2.20 GHz/4GB DDR2/500GB HDD/DVD-RW/Windows 7 PRO 64 BIT

Model: Dell OptiPlex 755 MT - Mini Tower
Operating System Info: Windows 7 Professional 64bit
Chipset: Intel Q35 Express Chipset (ICH9DO)
Processor: Core 2 Duo E4500 @ 2.20 GHz
Memory Installed: 4 GB DDR2
Memory Supported: 4 DIMM slots DDR2 Synch DRAM Non-ECC Memory (667/800Mhz) up to 8GB
Hard Drive: 500GB
Optical Drive: DVD-RW
Graphics: Integrated Intel Graphics Media Accelerator 3100
Audio: ADI 1984 High Definition Audio
Networking: Intel 82566DM Gigabit LAN 10/100/1000

Chasis:
Number of Bays: 2 internal 3.5 in; 1 external 3.5 in; 2 external 5.25 in
Expansion Slots: 2 PCI; 1 PCIe x16; 1 PCIe x1; 1 Flexbay (for Media Card Reader); 5 SATA
Ports: 10 USB 2.0 ports; 2 front; 6 back & 2 internal; 1 Serial; 1 Parallel; 1 RJ-45; 1 VGA port; Stereo in (front); speakers out (back); mic in (front); headphone (front);
Power Supply Unit: Standard 305W PSU
Dimensions: 16.10" high x 7.36" wide x 17.52" deep
System Weight: 25.80 lbs
Warranty: 365 days