Operating System :HP ThinPro, HP Smart Zero Technology, Microsoft Windows Embedded Standard 7E Chipset :N/A Processors : AMD GX-217GA Dual-Core, AMD GX-415GA Quad-Core Memory Support :4 GB DDR3L 1600 MHz standard, up to 16 GB, 2 SODIMMs Hard Drive :8-64GB MLC mSATA SSD Removable Media :16 GB for configurations Expansion Bays :N/A Expansion Slots :N/A Graphics :AMD Radeon HD 8280E graphics (GX-217GA), AMD Radeon HD 8330E (GX415GA) Audio :Internal amplified speaker, 1/8-inch mini jack out Communications :10/100/1000 Gigabit Ethernet I/O Ports :Front: Two (2) USB 2.0, Two (2) USB 3.0, Headphone/Mic, Rear: Two (2) USB 2.0, 2 DisplayPort 1.2, RJ45, Audio I/O, Two (2) PS/2 Power :65W worldwide auto-sensing 100-240 VAC 50-60Hz surge-tolerant power supply Dimensions :240 x 220 x 40 mm Weight :1.36 kg