Go for the cheaper one, both are fine.There are two models:
SAMSUNG 970 EVO PLUS 500GB M.2 PCIE MZ-V7S500BW (€121.99 or $136)
SAMSUNG 970 EVO 500GB M.2 PCIE MZ-V7E500BW (€129.00 or $143)
If am correct the only difference is speed right?
@USAFRet for me 500GB will be enough. Most of the time I use my laptop for web browsing, some software, file transfer.. it's gaming laptop though, but I don't game.
And the model for the laptop is "GL702VT" and based on the website https://rog.asus.com/articles/guides/upgrade-guide-rog-strix-gl702/ it explains that it has 'M.2 SSD' slot. I haven't opened the case but hopefully there is M.2 slot.