Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q43 Processors : Intel Core 2 Duo, Dual Core, Core 2 Quad, Pentium & Celeron Memory Support : Four (4) DIMM slots , Up to 16 GB DDR2 SDRAM  Hard Drive : SATA, SSD SATA Removable Media : N/A Expansion Bays : External: One (1) 5.25-inch, One (1) 3.5-inch, Internal: One (1) 3.5-inch Expansion Slots : One (1) LP PCI-e 2.0 x16, One (1) LP PCI-e 2.0 x4, Two (2) LP PCI Graphics : Intel GMA 4500 Audio : Realtek ALC663 Communications : Gigabit Ethernet I/O Ports : Front: Two (2) USB, microphone, headphone  Rear: Six (6) USB, Stereo Line In/Out, VGA Power : 270W active PSU Dimensions : 38 x 34 x 10 cm Weight : 10 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel iQ33 Processors : Intel Core 2 Duo, Dual Core, Pentium & Celeron Memory Support : Four (4) DIMM slots , Up to 8 GB DDR2 SDRAM  Hard Drive : Up to 250 GB 7200 rpm Removable Media : DVD-ROM/ DVD-ReWritable Expansion Bays : External: One (1) 5.25-inch, One (1) 3.5-inch, Internal: One (1) 3.5-inch Expansion Slots : One (1) LP PCI-e 2.0 x16, One (1) LP PCI-e 2.0 x1, Two (2) LP PCI Graphics : Intel GMA 3100 Audio : Realtek ALC 262 Communications : Broadcom BCM5754 I/O Ports : Front: Two (2) USB 2.0, Audio I/O  Rear: Six (6) USB 2.0, Audio I/O, VGA, Two (2) PS/2 Input Devices : Standard Keyboard (PS/2 or USB) Power : 270 W Dimensions : 38 cm x 34 cm x 10 cm Weight : 10 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q150 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) DVD-ROM, DVD Super Multi, BD Triple Writer SATA slim (tray) Expansion Bays : External: One (1) 5.25-inch, One (1) 3.5-inch, Internal: One (1) 3.5-inch Expansion Slots : One (1) LP PCI-e 3.0 x16, One (1) LP PCI-e 2.0 x4, Two (2) LP PCI-e 2.0 x1 Graphics : Intel HD Graphics Audio : Realtek ALC671 Communications : 10/100/1,000 MBit/s Intel I219V I/O Ports : Front: Two (2) USB 2.0, Two (2) USB 3.0 microphone, headphone  Rear: Two (2) USB 2.0, Four (4) USB 3.0, Two (2) DisplayPort, DVI-D, Audio I/O Power : 280 watts 84% active PFC Dimensions : 332 x 338 x 89 mm Weight : 8 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q87 Processors : Intel 4th Gen Core i3,i5,i7, Intel Celeron, Intel Pentium Memory Support : Four (4) DIMM slots , Up to 32 GB DDR3 SDRAM  Hard Drive : Up to 2TB 7200rpm or SSD Removable Media : DVD-ROM/ DVD-ReWritable Slim Expansion Bays : External: One (1) 5.25-inch slim, One (1) 3.5-inch Internal: One (1) 3.5-inch, One (1) 2.5-inch Expansion Slots : Two (2) PCI Express x16, Two (2) PCI Express x1 Graphics : Intel HD Graphics Audio : Realtek ALC221 codec Communications : Intel I217LM Gigabit Network Connection I/O Ports : Front: Two (2) USB 3.0, Two (2) USB 2.0, Audio I/0, Rear: Two (2) USB 3.0, Four (4) USB 2.0, VGA, DP, RJ-45, Serial, PS/2, Audio I/O Power : 240 W Dimensions : 37.9 cm x 33.8 cm x 10 cm Weight : 7.6 kg

Operating System : Windows 10 Home & Pro MAR Chipset : Intel Q57 Processors : Intel Core i3, i5, i7 4th Gen Memory Support : Four (4) DIMM slots , Up to 32 GB DDR3 PC3-12800 1600 MHz Hard Drive : SATA3 Hard Drive 7200 rpm or SSD Removable Media : Optional Slim Line Expansion Bays : External: One (1) 3.5-inch (for Media Card Reader), One (1) Slim Optical Drive Bay Internal: One (1) 2.5-inch, One (1) 3.5-inch (available without Media Card Reader) Expansion Slots : One (1) PCIe 3.0 x16 - low-profile, Two (2) PCIe 2.0 x1 - low-profile, One(1) PCIe 2.0 x16 - low-profile Graphics : Intel HD Graphics Audio : HD Audio (integrated) Communications : Gigabit Ethernet I/O Ports : Front: Two (2) USB 2.0, Two (2) USB 3.0 Rear: Four (4) USB 2.0, Two (2) USB 3.0, VGA, DisplayPort, RJ-45, Serial, PS/2 Keyboard/Mouse, Audio I/O Input Devices : Standard Keyboard, Mouse (USB ) Power : 240W active PFC Dimensions : 338 x 100 x 379 mm Weight : 7.6 kg

Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel Q270 Processors: Intel 6th & 7th generation Core i5-i7 Quad Core, Core i3 Dual Core Memory Support: Four (4) DIMM slots , DDR4 Up to 64 GB 2400 MHz Hard Drive : Up to 2 TB or SSD (optional) SATA or M.2 Removable Media : DVD-ROM/ DVD-ReWritable slim, Card reader (optional) Expansion Bays : External: One (1) slim, Internal: One (1) 3.5-inch Expansion Slots : One (1) PCIe x16 HH, One (1) PCIe x4 HH, One (1) M.2 2280 Graphics : Integrated Intel HD Graphics (depends on CPU) Audio : Integrated Audio Communications : Integrated Intel i219-LM E GbE Network Connection I/O Ports : 10 External USB - 6 x USB 3.1 Gen 1 (1 USB Type-C for data only and 1 Type-A front/4 Type-A rear) and 4 x USB 2.0 (2 Type-A front/2 Type-A rear - 1 front with PowerShare); 4 Internal USB 2.0; 1 RJ-45; 1 Serial; 2 Display Port 1.2; 1 HDMI 1.4; Input Devices : Standard Keyboard, Mouse Power : 180 W Dimensions : 29.0 x 9.26 x 29.2 cm Weight : 5.26 kg

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 7 Home & Pro. MAR, Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q270 Chipset Processors : Intel Pentium and Intel Core i3, Intel Core i5, and Intel Core i7 6th & 7th Gen Memory Support : UDIMM, DDR4-2400, 4 x 288-pin DIMM sockets Hard Drive : SATA 6.0Gb/s, 2.5"/ 3.5" wide, 5400 / 7200 rpm, Solid State Hybrid Drive (SSHD), Solid State Drive (SSD), M2 Removable Media : Optional 9-in-1 media reader, Sim DVD Burner Expansion Bays : Bay 1 Slim external optical drive bay, Bay 2 3.5", internal bay for HDD/SSD, Bay 3 2.5", optional internal bay for HDD/SSD Expansion Slots : One (1) PCI-e (LP) 3.0 x16, One (1) PCI-e (LP) 3.0 x1, One (1) PCI-e (LP) 3.0 x16 (x4 signal) Graphics : Up to Integrated Intel HD Graphics Audio : High Definition (HD) Audio, Realtek ALC662 Communications : Gigabit ethernet connection I/O Ports : Front: Four (4) USB 3.0, Audio I/O Rear: Four (4) USB 3.0, Audio I/O, Serial, VGA, Two (2) DP, LAN, Two (2) PS2 Power : 180W, autosensing, 85% PSU Dimensions : 290.5 mm x 92.5 mm x 343.5 mm Weight : 5.4kg