ThinkPad Laptop Edge E540 Intel Core i3 4th Gen 4000M (2.4GHz) 4GB Memory 500GB HDD Intel HD Graphics 4600 15.6" Windows 7 Professional through downgrade rights from Windows 8 Pro - Newegg.com
Specs Lenovo ThinkPad E540 i3-4100M Notebook 39.6 cm (15.6") Intel® Core™ i3 4 GB DDR3L-SDRAM 500 GB HDD Windows 7 Professional Black Notebooks (20C600JFUK)
Lenovo Laptop PC E540 15.6" HD LED Core i3 8GB Ram 500GB Webcam WiFi Win 10 Pro | eBay
ThinkPad Laptop Edge E540 Intel Core i3 4th Gen 4000M (2.4GHz) 4GB Memory 500GB HDD Intel HD Graphics 4600 15.6" Windows 7 Professional through downgrade rights from Windows 8 Pro - Newegg.com