TweakTown published a review on the Plextor M9P Plus 512GB NVMe SSD
A quote from the article:
The M8Pe, M8Se, and M9Pe all garnered a good amount of success for Plextor, but in the last two years, things have changed, and with that, the bar for performance as well. In its quest to remain a viable competitor in the market it was time to release the successor, and it comes in the form of the M9P Plus.Plextor M9P Plus 512GB NVMe SSD Review
The M9P Plus changes a few things up for Plextor, including the hardware platform the drive is built on. The last three iterations of NVMe solutions took advantage of the 88SS1093, and while each generation from the M8 to M9 was able to increase performance with new flash technologies, the M9P Plus has chosen the 88SS1092 and paired it with 96-layer BiCS4 TLC. This increases reliability with a proven datacenter controller and the latest NAND technology.