KitGuru tried the Plextor M8PeG 512GB M.2 NVMe SSD
A quote from the article:
The latest addition to Plextor's range of SSDs is the M8P line of drives. The M8P family is the company's first SSD range to use NVMe (Non-Volatile Memory) architecture and comes in two formats ? an HHHL add-in card for motherboards without an M.2 slot and a 2280 M.2 drive, both using a PCI-e Gen3 x4 interface.Plextor M8PeG 512GB M.2 NVMe SSD Review @ KitGuru