Lenovo ThinkPad T420s 417152U 14' LED Notebook - Core i5 i5-2520M 2.5GHz. TOPSELLER T420S I5-2520M 2.5G 4GB 320GB DVDRW 14IN BT W7P 64BIT NOTEBK. 1600 x 900 WSXGA Display - 4 GB RAM - 320 GB HDD - DVD-Writer - Intel GMA 3000 Graphics Card - Bluetooth - Webcam - Genuine Windows 7 Professional - 5.50 Hour Battery - DisplayPort Lenovo ThinkPad T420s Model 4171-52U 2.5Ghz 4GB RAM 320GB DVDRW