Protect your data and investment with the probook designed to deliver impressive performance and reliability take on your workday with the budget friendly hp probook 455 progressive style work confidently on the 156 inch diagonal hp probook 455 with an aluminium reinforced keyboard deck and 120 000 hours of hp testing and a new gravity black lcd cover design affordable performance enjoy the robust performance of cost effective and energy efficient amd a series apus with optional amd discret