CPU: Intel Core i5 Processor OS: Genuine Windows 7 Home Premium (MSI recommends upgrade to Genuine Windows 7 Professional) Chipset: Intel HM55 Memory: DDR3 800/1066, Max: 8GB LCD Size: 15.6" 1366x768 HD Graphics: NVIDIA GeFroce GT 325M + Intel integrated graphics Graphics VRAM: DDR3 1GB HDD (GB): 2.5" 320GB/500GB/640GB SATA Optical Drive: Super-Multi Audio: 4 High Quality Stereo Speakers Webcam: HD Webcam Card Reader: SD/SDHC/MMC/MS LAN: 10/100/1000 Wireless LAN: 802.11b/g/n Bluetooth: optional D-Sub (VGA): 1 HDMI: 1 USB 2.0 port: 2 USB 3.0 port: N/A eSATA: N/A eSATA/USB Combo: 1 Mic-in/Headphone-out: 1 Express Card: N/A Modem port: N/A Line-in: N/A Keyboard: 103 keys AC Adapter: 90W Battery: 6 cells Dimension: 392x249.5x37.6~32.3mm Weight (KG): 2.41