PNY CS2140 500GB M.2 NVMe Internal Solid State Drive - M.2-2280 - PCI Express 4.0 x4 - NVMe 1.4 - 3D NAND - Max Seq. Read up to 3600 MB/s - Max Seq. Write up to 2300 MB/s (M280CS2140-500-RB)