Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q370 Processors : Intel Core i3,i5,i7 8th & 7th Gen, Intel Pentium Memory Support : Up to 32GB DDR4 Hard Drive : SATA or M2. SSD Removable Media : Optional Extenal DVD ReWritable Expansion Bays : 1 x 2.5" HD or PCIe add-on cards or dGFX for M920x Expansion Slots : 1 x M.2 SSD or Intel® Optane, 1 x M.2 WiFi, 2x M.2 SSD for M920x Graphics : Intel HD Graphics 630/610 in processor Audio Support : Audio combo jack Communications : Integrated 100/1000M I/O Ports : Front: 1x USB 3.1 Gen1, 1x USB-C 3.1 Gen 1, microphone (3.5mm), audio combo jack (3.5mm) Rear: 2x USB 3.1 Gen 2, 2x USB 3.1 Gen 1, ethernet (RJ-45), DisplayPort, HDMI Power : 135W88% Adapter | 65W88% Adapter | 90W88% Adapter Dimensions : 179mm x 182.9mm x Height: 34.5mm Weight : starting at 1.32kg