Is Dell Latitude 7480 supported SSD M.2 NVMe?

To expand on ejn63’s find, it’s worth noting that even some laptops that support 4-lane NVMe only perform around 2-lane levels because they run the NVMe connection in power-saving GT2 mode rather than high-performance GT4 mode. The XPS 13 is an example of this, which is why people with 960 Evos can’t get past around 1.6 GB/s reads in that system even though the SSD could be twice that fast in a properly configured system. So if the 7480 runs its 2 lanes in GT4 mode, it wouldn’t be any slower than some other Dell laptops. On the other hand, if it runs those 2 lanes in GT2 mode, that would be basically equivalent to 1-lane performance, which would be only slightly faster than SATA. However, given that Dell is offering Class 40 SSDs in the 7480, I’m betting that they have the 2 lanes set up for max performance, since SATA-level performance would be below Class 40 standards. But only having 2 lanes still means that you may be limited to about 1.6 GB/s in this system even if your SSD is rated for higher speeds.