Dimensions: WxLxH: 317x230.6x29.5 Communications: Network Support: 802.11b/g Wireless Technology: Wireless LAN Wireless Technology: Bluetooth® Operating System: Windows® 7 Home Premium 64-bit Display: size: 13.3 " type: Toshiba TruBrite® WXGA TFT High Brightness display internal resolution: 1,280x800 Camera: integrated HD Web Camera (1,280x800) with AutoMacro support and built-in microphone Processor: type: Intel® Core™ i3-330M Processor clock speed: 2.13 GHz Front Side Bus: 1,066 MHz 2nd level cache: 3 MB Memory: standard: 4,096 (2,048 + 2,048) MB maximum expandability: 8,192 MB technology: DDR3 RAM (1,066 MHz) Optical storage: DVD Super Multi (Double Layer) drive Card reader: 5-in-1 Bridge Media slot (supports SD™ Cards up to 16 GB, Memory Stick® up to 256 MB, Memory Stick Pro™ up to 4 GB, MultiMedia Card™ up to 1 GB and xD-Picture Card™ up to 2 GB) Weight: 2.22 kg Video: type: NVIDIA® GeForce® G 310M with CUDA™ technology memory amount: 512 MB dedicated VRAM (total available graphics memory using TurboCache™ technology can be up to 1,753 MB)HDD: capacity: 320 GB drive rotation: 5,400 rpm I/O ports: 1xDC-in 1xexternal monitor 1xRJ-45 1xexternal microphone 1xheadphone (stereo) 1xS/PDIF (optical) shared with headphone socket 1xHDMI-CEC (REGZA-Link) supporting 1080p signal format 1 (Right)xeSATA/USB 2.0 supporting USB Sleep-and-Charge 2 (Left 1, Right 1)xUSB 2.0