http://www.ebay.in/itm/Lenovo-G580-Core ... 1014441079 Specifications of Lenovo Essential G Series G580 Laptop PROCESSOR Processor Core i7 (2nd Generation) Variant 2670QM Chipset Mobile Intel HM65 Express Brand Intel Clock Speed 2.2 GHz Cache 6 MB (Smart Cache) MEMORY Expandable Memory Upto 16 GB Memory Slots 2 (Unused Slot - 0) System Memory 8 GB DDR3 STORAGE Hardware Interface SATA RPM 5400 HDD Capacity 500 GB OPTICAL DISK DRIVE Optical Drive Integrated DVD RW Drive PLATFORM Operating System Free DOS DISPLAY Screen Size 15.6 Inch Resolution 1366 x 768 Pixel Screen Type HD Display INPUT Web Camera 0.3 Megapixel Pointer Device Touchpad Keyboard Standard Keyboard with Numeric Keypad AUDIO Internal Mic Yes Speakers Yes COMMUNICATION Ethernet 10/100M LAN Wireless LAN IEEE 802.11 b/g/n Bluetooth Yes POWER Battery Backup Up to 5 hours Power Supply 65 W AC Adapter Battery Cell 6 cell PORTS/SLOTS USB Port 2 x USB 3.0, 1 x USB 2.0 Mic In Yes RJ45 LAN Yes HDMI Port Yes VGA Port Yes Multi Card Slot 2-in-1 Card Reader MACHINE DIMENSIONS Weight 2.4 kg Dimension 376 x 245 x 34.3 mm WARRANTY 1 Year Onsite Warranty IN THE BOX Sales Package Laptop, Battery, AC Adapter, User Guide and Manuals