KitGuru tried the Patriot Hellfire 240GB SSD
A quote from the article:
Patriot's Hellfire M.2 SSD, the company's first NVMe drive, is built on a 2280 format with a PCIe 3.0 x4 interface. It uses a combination of a Phison PS5007-E7 controller and 2D MLC NAND.Patriot Hellfire 240GB SSD Review @ KitGuru