Part#: XBUY-E751-W7-002 Operating System: Windows 7 Professional 64-bit Optical Drive Type: DVD Super Multi Resolution: 1366 x 768 LCD Features: LED backlight & Crystal View technology Memory Speed: DDR3 1333 WLAN: Intel Centrino Advanced-N 6205 802.11 a/b/g/n (2 x 2) Webcam: 1.3MP