Lenovo ThinkPad T420 Business Laptop, Intel Core i7-2nd Generation CPU, 4GB RAM, 500GB HDD, NVIDIA NVS 4200M Graphics,14 inch Display, Windows 10 Pro
Dell Latitude E6420 Intel Core i7-2640M 4GB 320GB Windows XP NVidia Quadro 4200M | eBay
nvidia nvs 4200m | Newegg.com
Performance comparison between ThinkPad P50 with NVidia M1000M, ThinkPad W701 with NVidia Quadro 2800M, ThinkPad X230 with Intel HD4000 and ThinkPad T520 with NVidia NVS 4200M – Ioannis Karagiorgos blog