Memory Type: DDR4 Product Line (Desktop): Optiplex Graphics Video Memory Available (MB): 0 Processor Series: Intel Core i5 6th Gen. Storage Optical Drive Type: SuperMulti-DVD Burner Expandability Inputs/Outputs Physical Features Hard Drive Speed (RPM): 0 Keyboard Included: YES Display Total PCI Express X16 Slots: 2 Energy Star Compliant: YES Total 3.5" External Bays: 0 Available PCI Express X8 Slots: 0 Hard Drive Size (GB) (0 if none): 256 EPEAT Level: Not Applicable Processor Model Number: Intel Core i5-6500 RAM Mouse Connection Type: Wired Total 5.25" External Bays: 0 Lifestyle: Business Total Headphone Outputs: 1 What's in the box