ZOTAC ZBOX Mini PC with Intel Atom D2550 Dual-Core Processor, NVIDIA GT 610 Onboard Barebones System (ZBOX-ID86-U) NVIDIA GeForce GT 610 (512MB DDR3)Intel Atom D2550 (dual-core, 1.86 GHz)Intel NM10 Express chipset1 2.5-inch SATA 3.0 Gb/s (9.5mm height) drive bay2 204-pin DDR3-1066 SO-DIMM slot (up to 4GB) HDMI 1.4aDVIHDCP compliantNVIDIA PureVideo HDMicrosoft DirectX 11 compatible802.11n WiFiBluetooth 4.0 technology Microphone jack 6-in-1 Memory card reader (MMC/SD/SDHC/MS/MS Pro/xD) 4 USB 2.0 ports 2 USB 3.0 ports 10/100/1000 Ethernet (RJ45) Microsoft Windows 8 Microsoft Windows 7 x86 & x64 NVIDIA GeForce GT 610 (512MB DDR3)Intel Atom D2550 (dual-core, 1.86 GHz)Intel NM10 Express chipset1 2.5-inch SATA 3.0 Gb/s (9.5mm height) drive bay2 204-pin DDR3-1066 SO-DIMM slot (up to 4GB) HDMI 1.4aDVIHDCP compliantNVIDIA PureVideo HDMicrosoft DirectX 11 compatible802.11n WiFiBluetooth 4.0 technology Microphone jack 6-in-1 Memory card reader (MMC/SD/SDHC/MS/MS Pro/xD) 4 USB 2.0 ports 2 USB 3.0 ports 10/100/1000 Ethernet (RJ45) Operation System, Hard Drive and RAM sold separately