HP EliteBook 8470P 14" 240GB SSD Laptop

ExpressCard 54!

… and that can be installed with External GPU box for relatively low money. I am running Vega56 Mini with the smaller 2570p.

Seems that woot! took my suggestion quite seriously the other time. Not a bad deal but if I were to nitpick, the screen could have been the 1600*900 (scales nicely like my Dell XPS13).