Part#: 42875TU Operating System: Windows 7 Professional 64-Bit Chipset: Intel QM67 Resolution: 1366 x 768 LCD Features: Anti-glare, LED backlight, 200 nits, 16:9 aspect ratio, 300:1 contrast ratio Memory Speed: DDR3 1333 WLAN: Intel Centrino Wireless-N 1000, 1x2, 11b/g/n wireless Bluetooth: Yes