samsung 980 pro

Hi, I'm in the process of choosing between these 2 SSD NVMe drives, to add more storage to my desktop computer. My motherboard only has 1 m.2 pcie3.0 connector, already filled with a 970 EVO 500Mb with OS. So the idea was to add a PCIe m.2 adapter to add a new SSD drive. Now, I know that I...