HHP Smart Buy Z230 Small Form Factor Workstation; SFF 240W Standard Efficiency Chassis; Intel Core i5-4590 3.3 6M GT2 4C CPU; 1TB 7200 RPM SATA Hard Drive; 8GB DDR3-1600 non-ECC (2x4GB) Unbuffered RAM; 16X SuperMulti DVDRW SATA ODD; HP USB Keyboard/USB Optical Mouse; Intel HD Graphics 4600; Windows 7 Professional 64 installed with Windows 8.1 Professional License; Limited 3 years parts, 3 years labor, and 3 years onsite service (3/3/3) standard warranty.