It has been a long time in the making but the new Plextor M6S family is finally rolling out. Based on Marvell SSD controllers and Toshiba NAND flash memory, we got our first glimpse at the M6e M.2 PCIe X2 SSD some months ago in our IO-Switch Raijin Review, followed by our official analysis of the 512GB capacity M6e (and some great RAID testing) a short time ago. To be completely honest, we have been just a bit spoiled by all manufacturers with respect to our M.2 SSD coverage. Things are a bit different today, however, as we introduce the Plextor M6S SSD, the newest of the Plextor M6 family and with a brand new Marvell controller.