Product model code: X551CACPU Family name:Celeron CPU Model Number: 1007U Clock speed: 1500 MHzChipset: Intel HM70 Express Screen size: 15.6" Screen LED backlight: Yes Native resolution:1366x768 Screen type: Glossy Memory (RAM): 4GB Max memory (RAM): 8GB Memory type:DDR3 Module form factor: 240-pin DIMM Frequency speed: 1600 MHzHDD Capacity: 500GB Rotation speed: 5400 rpmInterface: SATAODD type: DVD Super Multi VGA card: Intel HD GraphicsIntegrated LAN: Gigabit KB language: NOR Battery type: Battery LI-ION 4-cell 2600mAh Input/Output connectors: 15pin D-sub 1 HDMI 1 Audio-Out 1 USB 2.0 1 USB 3.0 1 RJ45 1 Wireless LAN: 802.11b/g/n Bluetooth: No Card Reader: SD/ MMCMicrophone: Built-in Speakers:Yes Built-in WebCam: Yes Fingerprint reader: No Operating System:Microsoft Windows 8 Colour: Black Unit Dimensions (W x H x D): 380 x 31 x 251 mm Unit Brutto Volume: 0,00936 cubmUnit Net Weight:2,15 kgUnit Gross Weight: 3,01 kg