Marketing Name: Wind Box DC520 Operating System: Genuine Windows 7 Home Premium CPU: Intel Pentium Dual Core E5400 Processor 2.7GHz Chipset: Intel G41 + ICH7 Graphics: Integrated Intel GMA X4500 with 256MB VRAM HDD: 3.5“ 320GB 7200 RPM Memory: DDR3, So-DIMM x2, maximum to 4GB Power: 120W WiFi: 802.11 b/g/n; Mini PCI-E card Rear I/O: USB x 4 / RJ45 LAN port VGA out / HDMI out / DVI out 7.1 Channel Audio + SPDIF out DC-in eSATA Front I/O: 6-in-1 Card Reader Mic-In & Headphone-out USB x 2 Color Plan: Black Dimension: 300 x 65 x 260.7 mm Please do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games. Note: Try to set a system restore point before installing a device driver. It will help you restore system if installed driver not complete.