TravelMate P246M-M-591S Notebook Matte 14" (1366x768) OS: Windows 8.1 Pro (64-bit) / Windows 7 Professional (64-bit) Processor: Intel Core i5-4210M (3MB Intel Smart Cache, 2.60GHz, up to 3.20GHz with Intel Turbo Boost Technology 2.0) Memory: 4GB (4/0) DDR3L SDRAM Storage: 500GB SATA hard drive, 5400RPM; integrated Super-Multi drive (M-DISC READY); SD card reader Graphics: Integrated Intel HD Graphics 4600 (400MHz base frequency, 1.15GHz max dynamic frequency) Communications: Intel Centrino Advanced-N 7260 802.11a/b/g/n WLAN, Bluetooth 4.0, gigabit LAN, webcam Security: Kensington lock slot Lithium-Ion Battery: Six-cell, up to 5.5 hours of life depending on configuration and usage