To add to the confusion, manufacturers have a plethora of acronyms that are used to describe features and types of components on the m.2 drives. Compared to the speeds when I was first building PCs of 66 MB/s (PATA speeds) this is certainly a huge leap in performance. Right? Gen4 has taken that blistering speed even farther by claiming as high as 7,000MB/s read and 5,000 MB/s write. This should be monumentally different when using them. For example, top end SATA drives claim 550 MB/s -ish speeds, whereas NVMe claim up to 3500MB/s transfers. Gen3 NVMe drives claim 2-3x higher transfer rate (read and write) over SATA SSDs. The question I am posting here is one I’ve been curious about myself. I love the performance boost, and size over spinning disks and even over most SATA SSDs. I’ve been using m.2 drives and even u.2 drives for a little while now.