HP 2011 BNB Notebook Upgrade Bay 500 GB Hard Drive is a convenient and affordable solution for users who require additional storage or a faster dedicated second hard drive. Model LX733AA is designed specifically to fit into 2011 HP Business Notebook platforms and does not work with HP Docking Stations. - Extend the life of your HP Business Notebook by providing additional storage - Easy back-up solution without burdening network resources - Switch drives between most HP business notebooks