HP Pavilion Mini 300-020 Desktop, Intel 3558U Dual Core, 4GB DDR3, 500GB SATA, 802.11n, Win10Pro, White Intel Pentium 3558U with Intel HD Graphics (1.7 GHz, 2 MB cache, 2 cores)Graphics (1.7 GHz, 2 MB cache, 2 cores) 4GB PC3-12800 DDR3L SDRAM, 500GB Serial ATA hard drive (7200 rpm) Wireless 802.11b/g/n (1x1) and Bluetooth 4.0 combo, 4 USB 3.0, 1 headphone/microphone combo 3-in-1 memory card reader, Integrated 10/100/1000BASE-T Gigabit Ethernet LAN, DisplayPort, HDMI, Tiny size, only weighs 1.47 lbs, 2 inch tall Windows 8.1 64 bit, Free Upgrade to Windows 10, Weight 1.46 lb