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

With all of the connections ports businesses require, plus the powerful processors in a sleek, lightweight, and durable package, this laptop is built for business and ready to deploy.
Business-Class Security

Available with fingerprint reader, this laptop lets you use biometrics for login, so the swipe of your finger becomes your password.

Award-Winning Keyboard
Full-sized and spill-resistant, the legendary ThinkPad ergonomic keyboard is renowned for its full array of keys, excellent feel, and TrackPoint pointing device. It comes with convenient multimedia buttons, LED status indicators, Function-lock capability, and immediate access to view apps.

Details:
Intel Core i5-5300U Processor (Dual Core, 3M Cache, 2.3GHz up to 2.90 GHz)
8GB Upgraded DDR3 Memory(maximum memory capacity 16 GB),
500 GB 7200rpm HDD
No DVD Drive
14" HD (1366x768) with HD Graphics 5500
Intel 7265 ac WIFI + BlueTooth 4.0, Fingerprint Reader
Windows 7 Professional 64-bit preinstalled through Windows 10 Professional Downgrade Rights .
WebCam,SD card reader
Battyer: 3-cell (23Wh) + 3-cell (23Wh)
Three USB 3.0 (one Always On), VGA, Mini DisplayPort, Ethernet (RJ-45),
Dock connector (integrated models only)
14.0" (WxDxH): 13.35" x 9.15" x 0.83"; 339mm x 232.5mm x 21mm
3.81 lb / 1.73 kg