This is an upgraded configuration. If the computer has modifications (listed below), then the manufacturer box is opened for it to be tested and inspected and to install the upgrades to achieve the specifications as advertised.
Lenovo ThinkPad T450 20BV Laptop: THE 14" BUSINESS STANDARD.
Enterprise built-ready Ready for Business
Exceptional security, manageability, and durability
Plentiful, full-sized ports mean no need for dongles