This post contain basically everything necessary to install macOS Catalina on a Lenovo ThinkPad T450 as well as most Broadwell Lenovo Laptops from 2014-2016 with Intel HD5500 Graphics on either the i5 ...

Lenovo's ThinkPad X1 2-in-1 Aura Edition is an office-ready 2-in-1 with a marathon battery and smart design.