Operating System : Windows 10 Home & Pro MAR, Windows 11 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset : Intel Q370 Processors : Intel Celeron, Intel Pentium, Intel Core i3, i5, i7 8th Gen Memory Support : Four (4) DIMM slots , Up to 64 GB DDR4 - 2666 Hard Drive : M.2, Sata III or SSD Removable Media : Optional Expansion Bays : 2.5in; (2x) 3.5in; 5.25in (slim); Expansion Slots : PCIe 3.0 x16; (2x) PCIe 3.0 x1; PCIe 3.0 x16 (wired x4);wireless NIC, One (1) M.2 2280 for storage drives Graphics : Intel HD Graphics Audio : HD Audio Communications : Gigabit Ethernet I/O Ports : (2x) USB-C 3.1; (2x) USB-A 3.1; (3x) USB-A 3.2; (4x) USB-A 2.0; (2x) DisplayPort; RJ45; Headset; Line-Out; Line-In; RJ45 Input Devices : Standard Keyboard, Mouse (USB) Power : 250 W active PFC Dimensions : 100.08 x 337.82 x 308.10 mm Weight : 8.99 kg

Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel Q270 Processors: Intel Core i3/ i5 / i7 6th & 7th Gen Memory Support: Two (2)SODIMM slots ,32 GB dual channel DDR4 2133 MHz Speaker: Internal speaker amplifier, single 4-ohms speakers Display: 23.8" IPS Wide Viewing Angle WLED, Full HD 1920x 1080 resolution and Ultra HD (4K) 3840 x 2160 resolution with anti-glare coating. Hard Drive: one 2.5-inch SATA or SSD or one M.2 SSD Removable Media: DVD+/-RW and DVD/ROM Optical Disc Drives (optional), SD4.0 Media Card Reader (standard) Graphics: Integrated Intel HD 630/610/530/510 Audio: Intel High Definition Audio with Waves MaxxVoice Pro Communications: I219-LM Ethernet LAN 10/100/1000 I/O Ports: USB 3.1 Gen 1 x 2 (one with Type-C) USB 3.1 Gen 1 x 4 (rear)/ USB2.0 x 2 (rear), HDMI 1.4 Out (rear), HDMI 1.4 In(rear, DisplayPort 1.2 Out (rear), Audio I/O (side), Audio Line-Out (rear), RJ-45 (rear) Input Devices: Standard Keyboard, Mouse (USB) Power: 80 PLUS internal Power Supply Unit Dimensions: 39.3 x 57.5 x 6.4 cm Weight: 7.1 Kg

Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel Q87 Processors: Intel Core i3,i5,i7 4th Gen, Intel Pentium, Intel Celeron Memory Support: Two (2) SODIMM slots , Up to 16 GB DDR3 ,up to 1600 MHz Hard Drive: SATA , 7200 rpm Removable Media: N/A Expansion Bays: Internal: One (1) 2.5-inch, One (1) M.2 PCIe x4 Expansion Slots: One (1) M.2 PCIe x4-2230 (for WLAN), One (1) M.2 PCIe x4 2280 (for storage) Graphics: Intel HD Graphics Audio: HD audio with Realtek ALC221 codec (all ports are stereo) Communications: Gigabit Ethernet I/O Ports: Front: Two (2) USB 3.0(one Fast Charging Port), Audio I/O Rear: Four (4) USB 3.0, VGA, DP, RJ-45, Audio Out Input Devices: Standard Keyboard, Mouse (USB) Power: 65W Dimensions: 17.7 x 17.5 x 3.4 cm Weight: 1.3 kg

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 Q270 Processors: Intel 6th & 7th Generation Core i3, i5, i7 Processors, Pentium G Memory Support: (2) SODIMM slots enabling up to 32GB DDR4-2400, dual channel memory support Speaker: Bang & Olufsen Audio Display: 24" diagonal IPS widescreen LED anti-glare backlit LCD (1920 x 1080). Hard Drive: SATA HDD or SSD, PCIe NMVe TLC SSD drives Removable Media: Slim DVD-ROM drive or Slim SuperMulti DVD writer drive Graphics: Integrated Intel HD Graphics Audio: Conexant CX5001 Codec Communications: Intel I219LM Gigabit Network Connection LOM I/O Ports: Integrated 2 MP webcam 1920 x 1080 pixels; (6) USB 3.1 Gen 1: (2) side; (4) rear; (1) USB Type-C 3.1 Gen1, (1) side; (1) DisplayPort with multi-stream; (1) HDMI; (1) RJ-45 Ethernet port Input Devices: Standard Keyboard, Mouse (USB) Power: 180 W active PFC Dimensions: 538.48 x 180.34 x 467.36 mm Weight: 8.73 kg