ThinkPad X220 12.5" LED Core i5 2.50GHz 4GB DDR3 SDRAM 320 GB HDD 64-bit Windows 7 Professional Black Laptop - mylaptopreviewsworld.com/thinkpad-x220-12-5-led-core-i5-2-50ghz-4gb-ddr3-sdram-320-gb-hdd-64-bit-windows-7-professional-black-laptop/