THINKPAD X250 I5-5300U 2.3G 8GB 256GB SATA 12.5IN FP BT W7P 64BIT Intel Core i5 (5th Gen) 5300U / 2.3 GHz to 2.9GHz with Turbo Boost, 12.5" - IPS LED backlight Display 1366 x 768 ( HD ) 256GB SSD Drive, 8 GB DDR3L SDRAM, Backlit Keyboard With Spill-resistant, multi-touch touchpad,Bluetooth 4.0, 802.11ac, Wi-Fi 2 x USB 3.0 VGA Mini DisplayPort LAN Dock Headphone/microphone combo jack, Intel HD Graphics 5500, Memory Card Reader Windows 7 Professional 64-bit Edition Installed, Windows 8.1 Pro 64-bit Edition downgrade Available.