Lenovo ThinkPad X1 Carbon Ultrabook: Core i5-6300U | 256GB OPAL2 SSD | 8GB | 14"(1920x1080) IPS | Windows 7 Professional /Win 10 Pro (20FB004JUS) ThinkPad X1 Carbon 20FB (20FB004JUS) (4th Gen) only 2.579 lb / 1.17 kg Core i5-6300U (2C, 2.4 / 3.0GHz, 3MB) 14" FHD (1920x1080) IPS	with Integrated Intel HD Grahpics 520 256GB SSD M.2 Opal2; 8GB Soldered Memory Intel 8260 ac, 2x2 + BT4.1; WWAN Upgradable; Fingerprint Reader; 4-cell (52Wh); Windows 10 thru downgradable to Windows 7 Pro 64 (pre-installed) Max Memory: 8 GB