Microsoft Surface Book 2 13.5,Microsoft Surface Book 512GB with Performance Base (13.5 Inch Touchscreen, 2.6GHz Intel Core i7, 16GB RAM) Version,Microsoft Surface Book (512 GB, 16 GB RAM, Intel Core i7, NVIDIA graphics),Microsoft Surface Book 512GB with Performance Base (13.5 Inch Touchscreen, 2.6GHz Intel Core i7, 16GB RAM) Version,Amazon.com: Microsoft Surface Book 2 (Intel Core i7, 16GB RAM, 512GB) - 13.5in (Renewed) : Electronics