So I am looking for a gaming laptop for my wife. I was hoping for an RTX 2070 non q-max...I would prefer G-sync as well. My last big ask is for thunderbolt 3 with four PCIe lanes and not two so she can run an external GPU down the line when ever the RTX 2070 can't keep up anymore. I know there are some thunderbolt solutions out there that only use 2 lanes instead of four which cripples eGPU performance. I have been searching for verification one way or the other on the PROSTAR Clevo PB51EF-G. If anybody knows how many lanes it uses I would appreciate it. And yes /I am aware I won't be able to use G-Sync with thunderbolt when that time comes.