Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS
Chipset : Intel Q170
Processors : Intel 6th generation Core i7, i5, i3, Pentium G
Memory Support : Four (4) DIMM slots , Up to 64 GB DDR4 2133 MHz SDRAM 
Hard Drive : SATA III HDD or SSD, M.2 SSD
Removable Media : optional
Expansion Bays : One (1) 5.25-inch for slim optical disc drive only, One (1) internal 3.5-inch, One (1) external 3.5-inch
Expansion Slots : One (1) LP PCI-e 3.0 x16, One (1) LP PCI-e 2.0 x 4 (mech. x16), Two (2) LP PCI-e x 1
Graphics : Intel HD Graphics
Audio : Realtek ALC671
Communications : 10/100/1,000 MBit/s Intel I219LM
I/O Ports : Audio I/O, microphone, headphone, 2 x DisplayPort, DVI-D, RJ-45, front 2 x USB 2.0, 2 x USB 3.0, rear 2 x USB 2.0, 4 x USB 3.0, 2 x USB 2.0
Power : 280 watts
Dimensions : 332 x 338 x 89 mm
Weight : 8 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS
Chipset : Intel B250 Chipset
Processors : Intel Celeron, Intel Pentium, or 6/7th Generation Intel Core i3 / i5 / i7 Processor
Memory Support : Four (4) UDIMM slots , Up to 64 GB DDR4-2400
Hard Drive : HDD or SSD
Removable Media : Optional
Expansion Bays : N/A
Expansion Slots : N/A
Graphics : Intel HD Graphics 530
Audio : Realtek ALC662 codec
Communications : Gigabit Ethernet
I/O Ports : Front Ports : Four USB 3.1 Gen1, optional two USB 3.1 Type-C Gen 2 (only available via special bid), microphone (3.5mm), headphone (3.5mm), Rear : Two USB 3.1 Gen1, two USB 2.0, optional two USB 2.0, serial (9-pin), optional 2nd serial (9-pin), optional parallel (25-pin), ethernet (RJ-45), one VGA, two DisplayPort,
two PS/2 ports (keyboard/mouse)
Power : 210 W or 180W
Dimensions : 92.5mm X 290.5mm X 343.5mm
Weight : 6kgrm x 9.25cm, 6kgr

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS
Chipset : Intel Q150
Processors : Intel 6th Gen Core i3,i5,i7, Intel Pentium, Intel Celeron
Memory Support : Four (4)DIMM slots , Up to 64 GB DDR4
Hard Drive : SATA, 7200 rpm
Removable Media : Optional
Expansion Bays : External: One (1) 9.5 mm, Internal: Οne (1) 2.5-inch, Οne (1) 3.5-inch
Expansion Slots : One (1) LP PCIe 3.0 x 16, One (1) LP PCIe 3.0, One (1)LP PCI x 16
Graphics : Intel HD Graphics
Audio : High Definition (HD) Audio, Realtek ALC662
Communications : Intel I219-LM GbE Network Connection
I/O Ports : Front: Two (2) USB 3.0, Audio I/O, Rear: Four (4) USB 3.0, Two (2) USB 2.0, Two (2) DP, VGA, Serial, RJ-45, Audio I/O
Power : 210 W
Dimensions : 35.7 x 33.8 x 8.8 cm
Weight : 5.6 kg