HOW to upgrade SSD M.2 vnme IN Dell AIO 7490 || Dell OptiPlex 7490 All-In-One NVME M.2 SSD Upgrade? - YouTube
Refurbished: Dell OptiPlex 7440 23.8" FHD All in One Desktop Intel Quad Core i7-6700 3.40GHz 16 GB DDR4 512 GB M.2 SSD + 1TB HD Windows 10 Pro - Newegg.com
Dell OptiPlex 7440 AIO review: A no-nonsense IT-friendly business desktop | ZDNET
Dell OptiPlex 7440 All In One Computer, 23.8" Touchscreen, Intel Core i5 6500 3.2 GHz, 16GB DDR4 Memory, 1TB SSD, Bluetooth, Wifi, Windows 10 Pro, Includes Wireless Keyboard and Mouse, Used - Walmart.com