Operating System : Windows 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 15.6'' Display Max Resolution : 1366 x 768 or 1920 x 1080 Chipset : Mobile Intel HM87 or QM87 Processors : 4th generation Intel Core i3,i5,i7 Processors Ram Memory : Two (2) SODIMM slots,up to 16 GB, DDR3L Hard Disk Drive : Up to 2 TB or 7200 rpm or SSD (Optional) Graphics : Intel HD 4400 Network Adapter : Intel Clarkville (I217-V) GbE Connection WiFi : Yes Web Camera : Optional Optical Disc Drive : DVD ROM / DVD ReWritable USB : Five (5) x USB 3.0 Ports : VGA, Display Port, Media Card Reader -( supports SD Card, SDHC Card, SDXC Card), RJ-45 Power Supply Adapter : 65 W Dimensions : 37.8 x 25.7 x 2.53 cm  Weight : 2.32kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Display Size : 13.3" Display Max Resolution : 1920 x 1080 Chipset : Intel Processors : Intel Core i5 8th Gen Ram Memory : Up to 32 GB DDR4 2666 MHz Hard Disk Drive : SSD Graphics : Integrated Intel UHD Graphics 620 Network Adapter : 10/100/1000 Mb/s Ethernet WiFi : Yes Web Camera : Optional Optical Disk Drive : N/A USB : 2 x USB-A, 1 x USB-C Ports : HDMI, RJ-45, Combo headphone/mic port, Power Supply Adapter : 65 W Dimensions : 305.7 x 207.5 x 1.69 mm Weight : 1.24 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Display Size : 13.3" Display Max Resolution : 1920 x 1080 Chipset : Integrated with processor Processors : Intel Core i5, i7 7th & 8th Gen Ram Memory : One (1) slot, Up to 16 GB DDR4L 2400 Mhz Hard Disk Drive : Up to 512GB M.2 SSD, up to 1TB M.2 PCIe, up to 512GB M.2 PCIe SED SSD Graphics : Intel Integrated HD Graphics Network Adapter : Intel Gigabit Ethernet Controller WiFi : Yes Web Camera : Yes Optical Disc Drive : N/A USB : Two (2) USB 3.1, One (1) USB Type-C Ports : HDMI, RJ-45, Audio Combo Jack Power Supply Adapter : 65 W Dimensions : 207.10 x 304.8 x 16.33 mm Weight : 1.17 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Display Size : 13.3" Display Max Resolution : 1920 x 1080 Chipset : Integrated with processor Processors : Intel Core i5, i7 7th & 8th Gen Ram Memory : One (1) slot, Up to 16 GB DDR4L 2400 Mhz Hard Disk Drive : Up to 512GB M.2 SSD, up to 1TB M.2 PCIe, up to 512GB M.2 PCIe SED SSD Graphics : Intel Integrated HD Graphics Network Adapter : Intel Gigabit Ethernet Controller WiFi : Yes Web Camera : Yes Optical Disc Drive : N/A USB : Two (2) USB 3.1, One (1) USB Type-C Ports : HDMI, RJ-45, Audio Combo Jack Power Supply Adapter : 65 W Dimensions : 207.10 x 304.8 x 16.33 mm Weight : 1.17 kg

Operating System : Windows 10 Home & Pro Display Size : 13.3'' Display Max Resolution : 1920 x 1080 Chipset : Integrated in the processor Processors : Intel Core i5 8th Gen Ram Memory : Up to 16 GB DDR4, 1 DIMM slot Hard Disk Drive : SSD M2, SATA Graphics : Intel 620 Graphics Network Adapter : Gigabit Ethernet WiFi : Yes Web Camera : Optional Optical Disk Drive : No Optical Drive USB : 3 X USB 3.1 Gen 1 port Ports : 1 x HDMI 1.4a, 1 x DP 1.2 via Type-C, One Micro SD-card 3.0 slot Power Supply Adapter : 65 W Dimensions : 225.50 mm x 320.60 mm x 19.60 mm Weight : 1.55 kg

Operating System : Windows 10 Home & Pro Display Size : 14 '' Display Max Resolution : 1366 x 768 or 1920 x 1080 Chipset :Integrated with processor Processors : Intel Core i5 8th Gen Ram Memory : Up to 32 GB DDR4-2400 SDRAM Hard Disk Drive : SATA,M.2 SATA, Graphics : HD Graphics 620 Network Adapter : Gigabit Ethernet WiFi : Yes Web Camera : Optional Optical Disk Drive : No Optical Drive USB : 1 USB 3.1 Type-C, 1 USB 3.1 Gen 1, 1 USB 3.0 Ports : 1 AC power, 1 headphone/microphone combo jack, 1 RJ-45, 1 HDMI Power Supply Adapter : 65 W Dimensions : 32.42 x 23.77 x 1.8 cm Weight : Starting at 1.6 kg

Operating System : Windows 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 14'' Display Max Resolution : 1920 x 1080 Chipset : AMD SoC (System on Chip) platform Processors : AMD Ryzen 3 5425U, AMD Ryzen 5 5625U, AMD Ryzen 7 5825U Ram Memory : Up to 40GB (8GB soldered + 32GB SO-DIMM) DDR4-3200, One memory soldered to systemboard, one DDR4 SO-DIMM slot, dual-channel capable, DDR4-3200 Hard Disk Drive : SSD M.2 Graphics : AMD Radeon Graphics Network Adapter : Gigabit Ethernet WiFi : Yes Web Camera : Optional Optical Disc Drive : No Optical Drive USB : 2x USB 3.2 Gen 1 (One Always On) , 2x USB-C 3.2 Gen 2 Ports : HDMI, Headphone / microphone combo jack (3.5mm), RJ-45, Card reader Power Supply Adapter : 65 W Dimensions : 323 x 218 x 17.9 mm Weight : Starting at 1.4 kg

Operating System: Windows 10 Home & Pro MAR, Windows 11 Home & Pro MAR, Ubuntu Linux, Free DOS Display Size: 14.0" Display Max Resolution: 1920 x 1080 Chipset: Intel PCH-LP Processors: Intel Core i3, i5, i7 11th Gen Ram Memory: Two SoDIMM slots, Up to 64GB DDR4 SDRAM 3200 MHz Hard Disk Drive: HDD or SSD M.2 Graphics: Intel UHD Graphics, Intel Iris Xe Graphics Network Adapter: Integrated Realtek RTL8111H, Integrated Intel WGI219V, Transfer rate 10/100/1000 Mbps WiFi: Yes Web Camera: Optional Optical Disk Drive: N/A USB: 2x USB 3.2 Gen 1, 1x USB 3.2 Gen 2 Type-C Ports: Universal audio port, HDMI, Micro SD-card slot, Wedge-shaped lock slot , RJ45 Power Supply Adapter: 65 W Dimensions: 17.60 x 326 x 226 mm Weight: 1.52 kg