HP Prodesk 600-G1 Business PC, Intel I3-4160T/CI3, 3.1 GHz, 500.0 GB, Intel HD4400/IGP, Windows 10 Pro-64 Bit, Black Intel i3-4160T 3.1GHz Dual-Core processor 3MB Cache 4GB Memory (Supports up to 16GB) 500GB SATA Hard Drive Intel HD Graphics 4400 802.11 a/g/n wireless connection Windows 7 Professional (64 bit) Installed - Comes with Windows 10 Professional (64 bit) license