Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel H370 Processors : Intel Celeron, Intel Core i3, i5, 8th Gen Memory Support : Up to3 2 GB DDR4 SDRAM, 2 DIMM slots Hard Drive : NVMe, Sata or SSD Removable Media : Optional DVD Expansion Bays : 1 internal 3.5 HDD, 2 internal 2.5 HDD, 1 external slim ODD Expansion Slots : 1 Full Height PCIe x16, 3 Full Height PCIe x1 Graphics : Intel Graphicss 610/630 Audio : Realtek ALC3234 Communications : Realtek RTL8111HSD-CG Ethernet LAN 10/100/1000 I/O Ports : USB: 4 x 3.1 Gen 1 (2 front, 2 rear) and 4 x 2.0, 1 DP,1 HDMI, 1 RJ-45, optional VGA, Optional Serial Power : Standard 260W PSU Dimensions : 35 x 15.4 x 27.4 cm Weight : 7.93 kg