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 H110 Processors: Intel Core i3, i5, i7 6th & 7th Gen Memory Support: Two (2) SO DIMM slots DDR4 Hard Drive: Sata HDD SSD M2 Removable Media: optional Expansion Bays: External: One (1) 5.25-inch, Internal: One (1) 2.5-inch Expansion Slots: N/A Graphics: Intel HD Graphics Audio: Realtek ALC671 Communications: 10/100/1,000 MBit/s Realtek RTL8111GN I/O Ports: Audio: line-out, microphone, headphone, DisplayPort, DVI-D, Front: Two (2) USB 3.0, Rear: Two (2) USB 2.0,Two (2) USB 3.0 Power: 65W Dimensions: 185 x 190 x 54 mm Weight: 1.6 kg

Operating System : Windows 10 Home & Pro. MAR, Windows 10 Home & Pro MAR Chipset : Intel B250 Processors : Intel 7th generation i3,i7 Memory Support : Up to 2 SODIMM slots., up to 32 GB DDR4 Hard Drive : ΗDD Up to 2 TB, SSD Up to 512GB Removable Media : Optional Expansion Bays : 1 (total) / 0 (free) x internal 2.5" x 1/8H Expansion Slots : 1 M.2 (22x30mm) / 1 M.2 (22x80/22x42) Graphics : Intel 610/630 Graphics Audio : N/A Communications : Realtek RTL8111H I/O Ports : 4 USB3.1 Gen 1 (2 front and 2 rear); 2 USB 2.0 (rear) 1 RJ-45; 1 DisplayPort; 1 HDMI 1.4, 1 UAJ, 1 line out Power : 65 W Dimensions : 18.2 x 3.6 x 17.8 cm Weight : 1.18 kg

Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel Q370 Processors: Intel Core i3, i5 9th Gen Memory Support: 16 GB (1 module(s) 16 GB) DDR4, unbuffered, non-ECC, 2,666 MT/s, UDIMM Hard Drive: HDD, SSD or SSD M2 Removable Media: Optional Expansion Bays: 1 x 2.5-inch bays, 1 x 3.5-inch internal bays, 1 x 5.25-inch external bays Expansion Slots: PCI-Express 3.0 x4 (mech. x16) , PCI-Express 3.0 x16 Graphics: Intel HD Graphics 630 Audio: Realtek ALC671 Communications: Gigabit Ethernet I/O Ports: 6 x USB 2.0, 4 x USB 3.1 Gen1, line-in, line-out, microphone, headphone, DisplayPort, DVI-D, RJ-45, Power: 210W or 280W Dimensions: 313 x 286 x 89 mm Weight: 5 kg

Operating System : Windows 10 Home & Pro. MAR, Windows 10 Home & Pro MAR Chipset : Intel B250 Processors : Intel 7th generation i3,i7 Memory Support : Up to 2 SODIMM slots., up to 32 GB DDR4 Hard Drive : ΗDD Up to 2 TB, SSD Up to 512GB Removable Media : Optional Expansion Bays : 1 (total) / 0 (free) x internal 2.5" x 1/8H Expansion Slots : 1 M.2 (22x30mm) / 1 M.2 (22x80/22x42) Graphics : Intel 610/630 Graphics Audio : N/A Communications : Realtek RTL8111H I/O Ports : 4 USB3.1 Gen 1 (2 front and 2 rear); 2 USB 2.0 (rear) 1 RJ-45; 1 DisplayPort; 1 HDMI 1.4, 1 UAJ, 1 line out Power : 65 W Dimensions : 18.2 x 3.6 x 17.8 cm Weight : 1.18 kg

Operating System : Windows 10 Home & Pro. MAR, Windows 10 Home & Pro MAR Chipset : Intel B250 Processors : Intel 7th generation i3,i7 Memory Support : Up to 2 SODIMM slots., up to 32 GB DDR4 Hard Drive : ΗDD Up to 2 TB, SSD Up to 512GB Removable Media : Optional Expansion Bays : 1 (total) / 0 (free) x internal 2.5" x 1/8H Expansion Slots : 1 M.2 (22x30mm) / 1 M.2 (22x80/22x42) Graphics : Intel 610/630 Graphics Audio : N/A Communications : Realtek RTL8111H I/O Ports : 4 USB3.1 Gen 1 (2 front and 2 rear); 2 USB 2.0 (rear) 1 RJ-45; 1 DisplayPort; 1 HDMI 1.4, 1 UAJ, 1 line out Power : 65 W Dimensions : 18.2 x 3.6 x 17.8 cm Weight : 1.18 kg

Operating System : Windows 10 Home & Pro. MAR, Windows 10 Home & Pro MAR Chipset : Intel B250 Processors : Intel 7th generation i3,i7 Memory Support : Up to 2 SODIMM slots., up to 32 GB DDR4 Hard Drive : ΗDD Up to 2 TB, SSD Up to 512GB Removable Media : Optional Expansion Bays : 1 (total) / 0 (free) x internal 2.5" x 1/8H Expansion Slots : 1 M.2 (22x30mm) / 1 M.2 (22x80/22x42) Graphics : Intel 610/630 Graphics Audio : N/A Communications : Realtek RTL8111H I/O Ports : 4 USB3.1 Gen 1 (2 front and 2 rear); 2 USB 2.0 (rear) 1 RJ-45; 1 DisplayPort; 1 HDMI 1.4, 1 UAJ, 1 line out Power : 65 W Dimensions : 18.2 x 3.6 x 17.8 cm Weight : 1.18 kg

Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel Q370 Processors: Intel Core i3, i5 9th Gen Memory Support: 16 GB (1 module(s) 16 GB) DDR4, unbuffered, non-ECC, 2,666 MT/s, UDIMM Hard Drive: HDD, SSD or SSD M2 Removable Media: Optional Expansion Bays: 1 x 2.5-inch bays, 1 x 3.5-inch internal bays, 1 x 5.25-inch external bays Expansion Slots: PCI-Express 3.0 x4 (mech. x16) , PCI-Express 3.0 x16 Graphics: Intel HD Graphics 630 Audio: Realtek ALC671 Communications: Gigabit Ethernet I/O Ports: 6 x USB 2.0, 4 x USB 3.1 Gen1, line-in, line-out, microphone, headphone, DisplayPort, DVI-D, RJ-45, Power: 210W or 280W Dimensions: 313 x 286 x 89 mm Weight: 5 kg