- You cannot add "HP ProBook 450 G9 - Intel Core i7 - 12th Gen - Processor 1255u (up to 4.7 GHz) - 8GB Ram - 512GB SSD - Intel Iris Xe Graphics - 15.6″ FHD 250 nits Display - Fingerprint Reader - Backligth Keyboard - Dos" to the cart because the product is out of stock.