This is a Grade A HP Workstation Z440 MT Desktop Computer, featuring an Intel E5-1650 V3 3.50 GHz up to 3.80 GHz, with 16GB of DDR4 RAM, a 512GB Solid State Drive, and a Windows 10 Professional 64-Bit Operating System. This machine is fully refurbished and will offer you years of computing. These units are retail ready including a new digital license through Microsoft Operating System, a power cord, and keyboard/mouse. ALL ready to go out of the box (third-party/aftermarket or OEM used). Each unit has been subjected to rigorous functionality testing before they leave our facility, they will offer you years of computing. Units may have been cosmetically rejuvenated, but may have subtle signs of being preloved may exist.