CPU: Intel Atom Dual Core Processor N550(1.50GHz) OS: Genuine Windows 7 Starter Genuine Windows 7 Home Premium Display: 10.1" 1024x600 LED backlight System Memory: 1GB/2GB DDRIlI, 1 slot (Max 2GB) Chipset: Mobile Intel NM10 Express Chipsets Video Graphics: Intel GMA 3150 Hard Disk Drive: 250/320 GB 2.5"9.5mm SATA HDD 5400rpm Optical Disk Drive: N/A I/O Port: USB(2.0)*3, D-Sub, RJ45, Mic-in, Earphone-out, 4-in-1 card reader (SD/MMC/MS/MS Pro), DC-in Jack Audio: 1.5 Watt Speakers*2, Internal Mic-in Communications: LAN: 10/100/1000 Mbps Ethernet Base-T Wireless LAN: 802.11b/g/n Wireless Bluetooth: Bluetooth V3.0 + HS WWAN (3.5G):N/A Webcam: 1.3 Mega Pixel Security: Kensington Lock Battery: Li-ion 4-cell Dimension: 265(W) x 191(D) x 30.5(H) mm Weight: ~1.26Kg (w/ 4-cell battery) Docking Station I/O Port(Optional): USB(2.0)*3, D-Sub, RJ45, Earphone-out, Mic-in, DC-in Jack