Product details HP Z240 Tower Workstation best for AutoCAD and designing work Product Specification Processor: Intel Xeon E3 1225 V5 Processor Speed: 3.3 GHz 8MB Cache Form Factor: Tower Graphics: Nvidia Quadro K620 Hard Disk: 500 GB HDD Drive (Can be upgraded at extra cost) Memory (RAM) : 8 GB DDR4 RAM 2133 MHz (Can be upgraded at xtra cost) Ethernet Port: Yes, with Intel Gigabit Internet Support Operating System: Genuine Windows 10 Pro x64