Lenovo ThinkCentre E73 SFF i5-4460S, 16GB RAM, 500GB Solid State Drive, Win7 Pro 64 Desktop Computer Processor: Intel Core i5-4460S Quad Core Processor (6MB Cache, 2.90GHz - 3.40 GHz) 35W Hard Drive: 500GB Solid State Drive RAM: 16GB DDR3 1600MHz RAM Optical Drive: Super Multi-Burner DL DVDRW SATA 1.5Gb/s Drive 16GB RAM and Hard Drive Upgrade* | View Product Description for more details