A:AnswerI would suggest an external USB Solid State NVMe drive. The Western Digital NVMe drives are very fast. I copied 1.2 Terra Bytes of data in 2 hours. On any other USB drive it would take over 15 hours. You have to make sure your USB cables are fast however. They must be rated at 5 to 10 Gbps.
A:AnswerYes, this Inspiron does run cooler and the only time that it would run hot would be when Windows Updates are running. Again, the fan does come on when it starts to heat up
A:AnswerDell recommends Dell USB-C Mobile Adapter | DA310 for this laptop. Also, the universal docking stations, D3100 and D6000 series models are also compatible with this laptop.
A:AnswerThe installed drive is an M2 2280 PCIe SSD. I switched out the factory installed SSD for a 2TB Samsung 980PRO. The easiest way to do it is to use a disc cloning software such as EaseUS Partition Master to create a clone of the installed disk and to expand the drive to use the entire 2TB.