Description ThinkPad T420 - 1 Yr Depot Topseller Warranty Edit Processor: Intel Core i5-2520M Processor (2.50GHz, 3MB L3) Edit Operating system: Genuine Windows 7 Home Premium 64 Edit Operating system language: Genuine Windows 7 Home Premium 64 US English Display type: 14.0 HD+ (1600 x 900) LED Backlit Anti-Glare Display, Mobile Broadband Ready Edit System graphics: NVIDIA NVS 4200M Graphics with Optimus Technology, 1GB DDR3 Memory Edit Total memory: 4 GB DDR3 - 1333MHz (1 DIMM) Edit Keyboard: Keyboard US English Hard drive: 500 GB Hard Disk Drive, 7200rpm Edit Optical device: DVD recordable multiburner Edit System expansion slots: Express Card Slot & 4 in 1 Card Reader Edit Battery: 9 cell Li-Ion Battery - 55++ Edit Power cord: Country Pack North America with Line cord & 90W AC adapter Edit Bluetooth: Bluetooth 3.0 Edit PCI adapter: IEEE 1394a port Integrated WiFi wireless LAN adapters: ThinkPad b/g/n Edit Integrated mobile broadband: Integrated Mobile Broadband - Upgradable Edit Language pack: Language Pack US English