Operating System : Windows 10 Home & Pro MAR, Windows 11 Home & Pro MAR Chipset : Intel Q370 Processors : Intel 8th & 9th Gen Core i3, i5, i7, i9, Intel Pentium G, Intel Celeron G Memory Support : Four (4) DIMM slots , Up to 128 GB DDR4 Hard Drive : SATA 7200 rpm or SSD, PCIe NMVe TLC SSD Removable Media : Optional Slim DVD-ROM/RW or Blu-Ray Expansion Bays : Internal: Two (2) 2.5-inch, One (1) 3.5-inch, External: One (1) slim ODD, One (1) SD Card Reader Expansion Slots : One (1) Turbo Drive M.2 PCIe x1-2230, One (1) Turbo Drive M.2 PCIe x4-2280, One (1) PCI Express x16; One (1) PCI Express x4 Graphics : Intel HD Graphics Audio : Conexant CX20632 codec Communications : Intel I219-LM Gigabit Network Connection I/O Ports : Front: Two (2) USB 2.0, Two (2) USB 3.1, One (1) USB Type C 3.1, Audio I/O,  Rear: Four (4) USB 3.1, Two (2) USB 2.0, Audio I/O, Two (2) DP, RJ-45 Input Devices : Standard Keyboard (USB), Standard Mouse (USB) Power : 180 W active PFC Dimensions : 95 x 297 x 269 mm Weight : 4.54 kg