Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel Q27 Processors: Intel Core i3/ i5 / i7 6th Gen Memory Support: Two (2)SODIMM slots ,32 GB dual channel DDR4 2133 MHz Speaker: Internal speaker amplifier, single 4-ohms speakers Display: 20? LED, 3840 x 2160, FHD and UHD (4K), Viewing Angle 178/178 V Hard Drive: one 2.5-inch SATA or SSD (Optional) Removable Media: Optional Graphics: Integrated Intel HD 630/610/530/510 Audio: Intel High Definition Audio with Waves MaxxVoice Pro Communications: Combo M.2 card (Intel Wireless 8265 M.2 PCIe WLAN card (802.11n/ac) with Bluetooth) I/O Ports: Side: Two (2) USB 2.0, 1 Media-card reader, Audio I, Rear: Four (4) USB 3.0, Two (2) USB 2.0, RJ-45, HDMI, DP, Audio I/O port Input Devices: Standard Keyboard, Mouse (USB) Power: 200W Dimensions: 57.52 x 39.29 x 6.35 cm Weight: Without stand 7.21 kg, touchscreen 8.15 kg