CPU Intel® Pentium Dual Core T4500 OS Genuine Windows® 7 Home Premium CHIPSET NVIDIA® ION™ GRAPHICS Integrated NVIDIA® GeForce 9300 MEMORY DDR2 4GB PANEL RESOLUTION 21.5" 1920 x 1080 TOUCH PANEL Yes- multi-touch HDD 3.5'' SATA2 640GB AUDIO 2 x 5W 5.1 channel speakers LAN 10/100/1000 OPTICAL DRIVE Tray-in DVD Super Multi WIRELESS LAN 802.11 b/g/n USB 2.0 PORT 6 CARD READER 6-in-1 ESATA 1 WEBCAM 1.3M TV TUNER Optional (PCI-E interface) EXPANSION SLOT Mini PCI-E x 2 HDMI IN 1 VGA IN 1 MIC-IN/HEADPHONE-OUT 1 KEYBOARD / MOUSE Wireless AC ADAPTER 120W NET WEIGHT 8.404kg GROSS WEIGHT 12.82kg