Blue SN570

Hi there! I’m with Dell’s Social Support Team. Thanks for reaching out! The good news is that your Latitude 7480 supports M.2 SSD upgrades, so moving from a 256GB SSD to a 512GB/ 1TB SSD is a great way to give the system some extra life and breathing room. Since you're down to only 7GB of free space

SSDs have become quite reliable, especially from good brands like wd. I believe a single 1tb ssd is a good idea. Smaller capacity ones have a lower endurance number. For eg: wd blue sn570 250GB has an endurance of 150. That means you can transfer a total of 150TB during it's lifetime before expectin

I use a WD Blue SN570 with a Sintech adapter in a 2014 rMBP and it’s been working good for a few years now.

In my opinion: Samsung consumer NVMe drives have been acting weird the last few years, random read‑only mode, firmware bugs, and no updates until it’s too late. If you want something that doesn’t pull that stunt, go with Crucial MX500 for SATA or Crucial P3/P5 Plus for NVMe. They’re boring, reliable

WD Blue SN570 with adapter. Been using one in my 2014 rMBP for two years and it’s been great. No issues with OCLP, or Bootcamp. This drive was always highly recommended and confirmed working on macrumors upgrade threads.