Operating System : Windows 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 15.6'' Display Max Resolution : 1920 x 1080 Chipset : N/A Processors : Intel Core i3,i5,i7 4th Gen Ram Memory : Two (2) SODIMM slots, DDR3, Up to 16GB, 1600 MHz Hard Disk Drive : SATA, 5.400rpm Graphics : Intel HD Graphics 4600 Network Adapter : Gigabit Ethernet WiFi : Yes Web Camera : Yes Optical Disc Drive : DVD ROM / DVD ReWritable USB : Two (2) USB 2.0, Two (2) USB 3.0 Ports : VGA, HDMI, RJ-45, ExpressCard, SD Power Supply Adapter : 90 W Dimensions : 37.9 cm x 29.7 x 15.05 cm Weight : 2.4 kg

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 : Integrated with processor Processors : 6th Generation Intel Core up to i7 processors Ram Memory : Two (2) x SODIMM slots, up to 32 GB DDR4-2133 SDRAM Hard Disk Drive : 1TB GB 7200 rpm or SSD, SATA, M2, NVMe connections Graphics : Integrated: Intel� HD Graphics 520; Intel� HD Graphics 530 Network Adapter : Integrated GbE Network Connection WiFi : Yes Web Camera : Optional Optical Disc Drive : Blu-ray ROM DVD+/-RW SuperMulti DL; DVD+/-RW SuperMulti DL; DVD-ROM USB : Two (2) x USB 3.0, One (1) USB Type-C Ports : 1 DisplayPort; 1 VGA; 1 headphone/microphone combo; 1 AC power; 1 RJ-45; 1 docking connector; 1 serial (optional) Power Supply Adapter : 45 W Smart AC adapter; 65 W Smart AC adapter; 90 W Smart AC adapter Dimensions : 37.8 x 25.7 x 2.74 cm Weight : 2.31 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Display Size : 15.6'' Display Max Resolution : 1366x768 Chipset : Integrated with processor Processors : AMD A4-9125, AMD A6-9225 Ram Memory : Two (2) x SODIMM slots, DDR4 Hard Disk Drive : 1 TB Graphics : Integrated with processor Network Adapter : Realtek RTL8821CE GbE Network Connection WiFi : Yes Web Camera : Yes Optical Disc Drive :DVD / DVD ReWritable USB : Two (2) x USB 3.1, One (1) x USB 2.0, Ports : HDMI, DP, RJ-45,(1) Multi-format digital media reader Supports SD, SDHC, and SDXC. Power Supply Adapter : 65W Dimensions : 37.6 x 24.6 x 2.25 cm  Weight : 1.78kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Display Size : 15.6'' Display Max Resolution : 1366x768 Chipset : Integrated with processor Processors : AMD A4-9125, AMD A6-9225 Ram Memory : Two (2) x SODIMM slots, DDR4 Hard Disk Drive : 1 TB Graphics : Integrated with processor Network Adapter : Realtek RTL8821CE GbE Network Connection WiFi : Yes Web Camera : Yes Optical Disc Drive :DVD / DVD ReWritable USB : Two (2) x USB 3.1, One (1) x USB 2.0, Ports : HDMI, DP, RJ-45,(1) Multi-format digital media reader Supports SD, SDHC, and SDXC. Power Supply Adapter : 65W Dimensions : 37.6 x 24.6 x 2.25 cm  Weight : 1.78kg

Operating System : Windows 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 15.6'' Display Max Resolution : 1920 x 1080 Chipset : Mobile Intel CM236 Processors : 6th Generation Intel Core up to i7 processors, Xeon Ram Memory : Four (4) x SODIMM slots, up to 64 GB DDR4 1.35V ECC or Non-ECC SDRAM (Transfer rates up to 2133MT/s) Hard Disk Drive : 1TB GB 7200 rpm or SSD, SATA, M2, NVMe connections Graphics : Intel HD Graphics 530 Network Adapter : Integrated GbE Network Connection WiFi : Yes Web Camera : Optional Optical Disc Drive : DVD ROM / DVD ReWritable USB : Three (3) x USB 3.0 Ports : HDMI, VGA, RJ-45,1 x Docking Connector, 2 x Thunderbolt 3, 1 x ExpressCard/54 Slot, 1 x Smart Card Power Supply Adapter : HP 150W Slim Smart AC adapter Dimensions : 386 x 264 x 26 mm Weight : 2.59 kg

Operating System : Windows 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 15.6'' Display Max Resolution : 1920 x 1080 Chipset : Mobile Intel CM246 Chipset Processors : 8th Gen Intel Core i7, i9 or Intel Xeon® E Processor Ram Memory : 128GB non-ECC or 64GB ECC max / 2400MHz DDR4 (ECC function supported only on Xeon processor), dual-channel capable, four DDR4 SO-DIMM sockets Hard Disk Drive : HDD, M.2 SSD Graphics : NVIDIA® Quadro® P3200 (6 GB VRAM), NVIDIA® Quadro® P2000 (4 GB VRAM), NVIDIA® Quadro® P1000 (4 GB VRAM) Network Adapter : Intel Ethernet Connection I219-V (non-vPro models), Intel Ethernet Connection I219-LM (vPro models) WiFi : Yes Web Camera : Yes Optional Optical Disk Drive : No Optical Drive USB : 3x USB 3.1 Gen 1 (one Always On), 2x USB Type-C / Thunderbolt 3 Ports : 1x Mini DisplayPort, 1x HDMI, 1x RJ-45, 1x headphone / microphone combo jack, 1x 4-in-1 reader (MMC, SD, SDHC, SDXC), 1x security keyhole Power Supply Adapter : 170W Dimensions : 377.4mm x 252.3mm x 24.5mm Weight : Starting at 2.45 kg

Operating System : Windows 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 15.6 Display Max Resolution : 1920x1080 Chipset : Integrated with the processor Processors : Intel Core i5, i7 12th & 8th Gen Ram Memory : 4 DIMM slots: Up to 64GB 2666MHz DDR4 Hard Disk Drive : SATA HDD or SSD Graphics : NVIDIA P200(optional) Network Adapter: 1 Gigabit Ethernet WiFi : Yes Web Camera : Yes (optional) Optical Disk Drive : N/A USB : 2 x USB 3.1 Gen 1, 2 x Thunderbolt 3 type C ports Ports : SD Card reader, mini Display Port 1.4, HDMI port 2.0, Ethernet port, Headphone jack Power Supply Adapter : 180 Watt AC adapter Dimensions : 337.6mm x 251.3mm x 25.mm Weight : Starting at 2.53kg

Operating System : Windows 10 Home & Pro, Ubuntu Linux, Free DOS Display Size : 15.6'' Display Max Resolution : 1920 x 1080 Chipset : Intel WM490 Processors : 10th Gen Intel Core i5, i7, i9 or Intel Xeon Processor Ram Memory : Up to 128GB DDR4 2933 Mhz ECC or non-ECC Hard Disk Drive : M.2 SSD Graphics : NVIDIA Quadro RTX 3000, NVIDIA Quadro RTX 4000 Max-Q, NVIDIA Quadro RTX 5000 Max-Q, NVIDIA Quadro T1000, NVIDIA Quadro T2000 Network Adapter : Gigabit Ethernet, Intel Ethernet Connection I219-LM (vPro models), Gigabit Ethernet, Intel Ethernet Connection I219-V (non-vPro models), supports Wake-on-LAN WiFi : Yes Web Camera : Optional Optical Disk Drive : No Optical Drive USB : 1x USB-C 3.1 Gen 1, 2x USB 3.1 Gen 1, 2x Thunderbolt 3 Ports : HDMI, SD card reader , RJ-45, headphone / microphone combo jack (3.5mm) Power Supply Adapter : 170W or 230W Dimensions : 377.4 x 252.3 x 24.5mm (Non-touch models), 375.4 x 252.3 x 25.25 (Touch models) Weight : 2.74 kg