Operating System : Windows 10 Home & Pro MAR Chipset : Intel Q370 PCH-H– vPro Processors : Intel Core i3, i5, i7 8th & 9th Gen, Intel Pentium, Intel Celeron Memory Support : Up to 128 GB DDR4-2666 SDRAM, 4 DIMM Hard Drive : Up to 2 TB Removable Media : Optional Expansion Bays : (3) 6.35 cm (2.5 in) Internal Storage Drive, (1) 8.89 cm (3.5 in) Internal Storage Drive Expansion Slots : (1) M.2 PCIe x1 2230 (for WLAN), (2) M.2 PCIe x4 2280/2230 Combo (for storage), (2) PCI Express v3.0 x1, (1) PCI Express v3.0 x16 (wired as x4), (1) PCI Express v3.0 x16 Graphics : Intel UHD Graphics 630 (integrated on 9th and 8th gen Core i9/i7/i3, Pentium Gold G5600, G5620), 610 (integrated on Pentium Gold G5420, Celeron G4930) Audio : Conexant CX20632 codec Communications : Intel I219-LM Gigabit Network Connection LOM I/O Ports : : Front (2) USB 2.0, (1) USB Type-C, (1) Headphone, (1) CTIA Universal Audio Jack, Rear (2) USB 2.0, (6) USB 3.1, (2) DisplayPort, (1) Audio input, (1) Audio output, (1) RJ-45 Ethernet Power : 250 W Dimensions : 10.0 x 33.78 x 30.81 cm Weight : 6.13 kg