Refurbished: Dell Precision M3800 15.6" 4K 3200 x 1800 TouchScreen Mobile Workstation PC, Intel Core i7-4702HQ 2.2Ghz, 16GB Ram, 512GB SSD, Nvidia Quadro K1100M, Win 10 Pro Grade B - Newegg.com
Amazon.com: CMS 1TB Mini m-SATA SSD Drive SATA III 6GB/s Compatible with Dell Precision M3800, Precision Mobile Workstation M4800, Precision Mobile Workstation M6800 - D96 : Electronics
Dell Precision 5510, 5520 How to install M2 SSD - YouTube
SSD Upgrade for Dell Precision Mobile 7760 512GB/1TB/2TB | eBay