Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : AMD A78 Processors : AMD PRO A- Series Memory Support : Four (4)DIMM slots , Up to 32 GB DDR3L 1600MHz Hard Drive : SATA Hard Drive 7200 rpm Removable Media : DVD-ROM/ DVD-ReWritable Expansion Bays : External: One (1) slim ODD, Internal: Two (2) 3.5-inch, One (1) 2.5-inch Expansion Slots : One (1) PCIe x16 Low Profile, Two (2) PCIe Graphics : AMD Radeon HD Audio : Realtek ALC221 Communications : Gigabit Ethernet I/O Ports : Front: Two (2) USB 3.0, Two (2) USB 2.0, Audio I/O, Rear: Four (4) USB 2.0, Two (2) USB 2.0, VGA, RJ-45, Two (2) Display Port, Serial, Parallel,Two (2) PS/2, Audio I/O Power : 200W Dimensions : 38 x 33.8 x 10 cm Weight : 6.6 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : AMD A78 Processors : AMD PRO A- Series Memory Support : Four (4)DIMM slots , Up to 32 GB DDR3L 1600MHz Hard Drive : SATA Hard Drive 7200 rpm Removable Media : DVD-ROM/ DVD-ReWritable Expansion Bays : External: One (1) slim ODD, Internal: Two (2) 3.5-inch, One (1) 2.5-inch Expansion Slots : One (1) PCIe x16 Low Profile, Two (2) PCIe Graphics : AMD Radeon HD Audio : Realtek ALC221 Communications : Gigabit Ethernet I/O Ports : Front: Two (2) USB 3.0, Two (2) USB 2.0, Audio I/O, Rear: Four (4) USB 2.0, Two (2) USB 2.0, VGA, RJ-45, Two (2) Display Port, Serial, Parallel,Two (2) PS/2, Audio I/O Power : 200W Dimensions : 38 x 33.8 x 10 cm Weight : 6.6 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel H61 Processors : Intel Core i3,i5 3rd Gen Memory Support : Two (2) DIMM slots , Up to 16 GB DDR3   Hard Drive : SATA 3.0Gb/s 7200 rpm Removable Media : DVD-ROM/ DVD-ReWritable Expansion Bays : External: One (1) 5.25-inch, Internal: One (1) 3.5-inch Expansion Slots : Two (2) PCIe x1 LP, One (1) PCIe x16 Graphics : Intel HD Graphics Audio : High Definition (HD) Audio, Realtek ALC662 codec Communications : Gigabit ethernet port, Realtek RTL8111E I/O Ports : Front: Two (2) USB 2.0, Audio I/O  Rear: Four (4) USB 2.0, VGA, DVI, RJ-45, PS/2, Serial (optional), Audio I/O Power : 240W Dimensions : 38.1 x 33.5 x 9.9 cm Weight : 6.6 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel H81 Processors : Intel Core i3,i5,i7 4th Gen, Intel Pentium G, Intel Celeron Memory Support : Two (2) DIMM slots, Up to 16GB DDR3 1600 MHz Hard Drive : 3Up to 1TB 7200 rpm Removable Media :DVD-ROM/ DVD-ReWritable Expansion Bays :External: One (1) 5.25-inch, Internal: One (1) 3.5-inch Expansion Slots :One (1) LP PCI Express x16, Two (2) LP PCI Express x1 Graphics :Integrated Intel HD Audio :Integrated high-definition (HD) audio Communications :Gigabit Ethernet I/O Ports :Front: Two (2) USB 2.0, Audio I/O,  Rear: Two (2) USB 2.0, Two (2) USB 3.0, Audio I/O, VGA, DP, PS2 Power : 240 W Dimensions : 38.2 cm x 33.5 cm x 10.1cm Weight :6.6 kg