Operating System: Windows 10 Home & Pro MAR, Windows 11 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: N/A Processors: Intel 8th generation Core i3,i5,i7 Memory Support: Two (2) SODIMM slots , Up to 32 GB DDR4 2666MHz Display: 23.8" IPS Wide Viewing Angle WLED, Full HD 1920x 1080 resolution with anti-glare coating; optional projected capacitive touch screen Hard Drive : SATA HDD or SSD, M.2 SSD Removable Media : N/A Expansion Bays : Internal: One (1) 2.5-inch Expansion Slots : N/A Graphics : Intel HD Graphics, NVIDIA GeForce? GTX 1050, 4 GB (Optional) Audio : Integrated Audio Communications : Ethernet 1000Mbps I/O Ports : 5 x USB 3.1 Type A, USB Type C, DisplayPort, HDMI In, HDMI Out, RJ-45, Audio Line-Out Input Devices : Standard Keyboard, Mouse (USB) Power : 80 PLUS internal Power Supply Unit; optional 155W EPA Bronze or 200W EPA Platinum Dimensions : 34.40 cm (13.54") x Width: 54.02 cm (21.27") x Depth: 5.28 cm (2.08") Weight : 6.05 kg (13.34 lb)

Operating System: Windows 10 Home & Pro MAR, Windows 11 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: N/A Processors: Intel 8th generation Core i3,i5,i7 Memory Support: Two (2) SODIMM slots , Up to 32 GB DDR4 2666MHz Display: 23.8" IPS Wide Viewing Angle WLED, Full HD 1920x 1080 resolution with anti-glare coating; optional projected capacitive touch screen Hard Drive : SATA HDD or SSD, M.2 SSD Removable Media : N/A Expansion Bays : Internal: One (1) 2.5-inch Expansion Slots : N/A Graphics : Intel HD Graphics, NVIDIA GeForce? GTX 1050, 4 GB (Optional) Audio : Integrated Audio Communications : Ethernet 1000Mbps I/O Ports : 5 x USB 3.1 Type A, USB Type C, DisplayPort, HDMI In, HDMI Out, RJ-45, Audio Line-Out Input Devices : Standard Keyboard, Mouse (USB) Power : 80 PLUS internal Power Supply Unit; optional 155W EPA Bronze or 200W EPA Platinum Dimensions : 34.40 cm (13.54") x Width: 54.02 cm (21.27") x Depth: 5.28 cm (2.08") Weight : 6.05 kg (13.34 lb)

Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel H61 Express Chipset Processors: Intel 2nd & 3rd generation Core i3 Memory Support: Up to 16GB 1600 MHz DDR3 (SODIMM) Display: 20" Wide LED 16:9 (1600x900) Hard Drive : HDD or SSD Removable Media : N/A Expansion Bays : N/A Expansion Slots : N/A Graphics : Intel HD Graphics Audio : High Definition (HD) Audio, Realtek ALC269Q Communications : One gigabit ethernet port, Realtek RTL8111E-VB I/O Ports : Side: (2) USB 2.0, Microphone, Headphone, Rear: (4) USB 2.0, Display Port, (RJ-45 Power : 150 W Dimensions : 506.8mm x 71.5mm x 411mm Weight : 6.835~7.055 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q85 Processors : Intel 4th Gen Core i5 Memory Support : Four (4) DIMM slots , Up to 32 GB DDR3 SDRAM, 1600MHz  Hard Drive : Up to 1TB 7200 rpm Removable Media : DVD-ROM/ DVD-ReWritable (slim) Expansion Bays : External: One (1) 3.5-inch Internal: One (1) 3.5-inch, One (1) 2.5-inch Expansion Slots : One (1) LP PCI Express x16s, Three (3) LP PCI Express x1 Graphics : Intel HD Graphics Audio : Realtek ALC221 codec Communications : Intel I217LM GbE Network Connection I/O Ports : Front: Two (2) USB 3.0, Two (2) USB 2.0, Audio I/O, Rear: Two (2) USB 3.0, Two (2) USB 2.0, VGA, DP, Audio I/O, RS-232 serial port Input Devices : Standard Keyboard (USB) Power : 240 W Dimensions : 38.05 cm x 33.7 cm x 10 cm 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-V Ethernet LAN 10/100/1000 I/O Ports : 10 External USB - 6 x 3.1 Gen 1 (2 Type-A front/4 Type-A rear), 4 x 2.0 (2 Type-A front/2 Type A rear - 1 front); 2 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 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: AMD B350 FCH Processors: AMD PRO A8 Series, AMD PRO A10 Series, AMD Ryzen 3 PRO, AMD Ryzen 5 PRO Memory Support: Four (4) DIMM slots ,64 GB DDR4, Up to 2666 MT/s Hard Drive: HDD or SSD Removable Media: DVD-ROM/ DVD-ReWritable, Slim Line (Optional) Expansion Bays : Internal: Two (2) 6.35 cm (2.5 in), One (1) 8.89 cm (3.5 in), Eternal: One (1) 0.9 cm (0.35 in) Slim optical disc drive (ODD) Expansion Slots : One (1) PCI Express x1 LP, One (1) PCI Express x16 LP, One (1) M.2 PCIe x1 2230, One (1) M.2 PCIe x2 2280/2230 Graphics : Integrated Audio : Conexant CX20632 Communications : Realtek RTL8111EPH I/O Ports : Front: 1 headset connector; 1 USB 2.0; 1 USB 2.0 (fast charging); 1 USB Type-C? (charging); 2 USB 3.1 Gen 1,Rear: 1 audio-in; 1 audio-out; 1 power connector; 1 RJ-45; 1 serial and PS/2 ports combination; 2 DisplayPort? 1.2; 2 USB 3.1 Gen 1; 4 USB 2.0 Power : 180 W active PFC Dimensions : 9.4 x 29.7 x 26.9 cm Weight : 4.5 kg