Last week we found the Plextor M6e 256GB M.2 PCI Express SSD to be pretty damn fast, but we really wanted to see what happened when we got two drives running in RAID. The Plextor M6e PCIe M.2 SSD is a PCIe Gen 2.0 x2 device is available in 128, 256 and 512GB capacities and is factory rated as having up to 770MB/s sequential read and 625 MB/s sequential write speeds. . If you happened to put two of these drives together to create a RAID0 array, you are talking about having over 1.4GB/s on the sequential read speeds. You’d need at least three leading SATA III 6Gbps drives to hit those speeds...