Model – HP Prodesk 400 G4, Processor – 7th Gen Intel Core i7 7700, Processor Clock Speed – 3.6-4.2GHz, CPU Cache – 8MB, Chipset – Intel H270, RAM – 8GB, RAM Type – DDR4, Max RAM Support – 32GB, RAM Slot – 2, HDD – 1TB HDD, HDD Type – SATA 7200 RPM, Graphics Chipset – Intel HD 630, Graphics Memory – Shared, Optical Device – DVD-RW, Speaker – Internal Speaker, Keyboard – HP USB Keyboard, Mouse – HP USB Optical Mouse, Networking – LAN, Display Port – VGA, Audio Port – Combo, USB Port – 4 x USB2.0, 4 x USB3.1 Gen 1, Operating System – Free Dos, Others – Power Supply: 180W active PFC 85% efficient, Specialty – 3.5in combo audio in-out prot in front for mic-in and audio-out. Back audio ports for sound in-out only not for microphone-in., Part No – 1NU88PA/1XG57AV, Warranty – 3 year HP Prodesk 400 G4