Samsung NP930X2K-K03US ATIV Book 9 Blade 4GB with 128

Note through Amazon QA section that the Low Voltage 4GB RAM is NOT upgradeable, but solder to the Mainboard. The SSD is a M.2. 2280 which can be replaced. However, you will void the warranty. There is no door cover to remove to replace the M.2. 2280 SSD. You will need to disassemble the laptop by many tiny screws to get access to replace the SSD.