HP ProBook 4540s Notebook PC - Identifying Components | HP® Customer Support
HP ProBook 4540s Notebook PC - 3rd generation Intel Core i5-3320M 2.6GHz, 8GB DDR3, 500GB HDD, DVDRW, 1GB AMD Radeon HD 7650M, 15.6 Display, Windows 7 Pro 64-bit / Windows 8 Pro
Amazon.com: HP 4540s i5-3210M 16-Inch Notebook (500 GB, 4 GB SO-DIMM DDR3 Windows 7, Intel HD Graphics 4000) : Electronics
HP ProBook 4540s Notebook with Intel i5 'Ivy Bridge' Leaks – Laptoping
HP ProBook 4540s (D8C12UT#ABA) Intel Core i5-3230M 2.6GHz 15.6" Windows 7 Professional 64-Bit Notebook - Newegg.com