This is a Sager Notebook NP8156. There are newer models, including better NVidia cards. Up to 64 GB ram. I bought mine with 16GB and added 32GB. Very expandable. Battery life is 2-ish hours, though can be increased by reducing brightness.
Lenovo has a 32 GB max model, and HP has a 64 GB max model.
Lenovo has a 32 GB max model, and HP has a 64 GB max model.