PCIe Slot type Librem 14

Hardware
1

I am looking to upgrade the SSD in my Librem 14. What version slot does the Librem 14 have? PCIe 3.0 or 4.0? I am looking to get either the Samsung 970evo or Samsung 980 Pro and with the 980, to take advantage of the speed you need PCIe 4.0.

Thanks!

2

PCIe 3.0. But PCIe 4.0 disk will work, although at 3.0 speeds.